Home / 13,077.48-18,046.80-7,109.04

Finding the Fourth Proportional to 13,077.48, 18,046.80 and 7,109.04

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Solution

The fourth proportional to 13,077.48, 18,046.80 and 7,109.04 is: 9,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.48 : 18,046.80 = 7,109.04 : x
  2. Step 2: Convert to fraction form
    13,077.48/18,046.80 = 7,109.04/x
  3. Step 3: Cross multiply
    13,077.48x = 18,046.80 × 7,109.04
  4. Step 4: Simplify right side
    13,077.48x = 128,295,423.07
  5. Step 5: Solve for x
    x = 128,295,423.07/13,077.48
  6. Step 6: Final answer
    x = 9,810.41

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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.