Home / 13,083.48-18,055.12-7,115.04

Finding the Fourth Proportional to 13,083.48, 18,055.12 and 7,115.04

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Solution

The fourth proportional to 13,083.48, 18,055.12 and 7,115.04 is: 9,818.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.48 : 18,055.12 = 7,115.04 : x
  2. Step 2: Convert to fraction form
    13,083.48/18,055.12 = 7,115.04/x
  3. Step 3: Cross multiply
    13,083.48x = 18,055.12 × 7,115.04
  4. Step 4: Simplify right side
    13,083.48x = 128,462,901.00
  5. Step 5: Solve for x
    x = 128,462,901.00/13,083.48
  6. Step 6: Final answer
    x = 9,818.71

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Half scale
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Double scale
Find fourth proportional to 13,084.48, 18,056.50 and 7,116.04
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.