Home / 12,477.16-17,218.42-6,888.12

Finding the Fourth Proportional to 12,477.16, 17,218.42 and 6,888.12

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Solution

The fourth proportional to 12,477.16, 17,218.42 and 6,888.12 is: 9,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.16 : 17,218.42 = 6,888.12 : x
  2. Step 2: Convert to fraction form
    12,477.16/17,218.42 = 6,888.12/x
  3. Step 3: Cross multiply
    12,477.16x = 17,218.42 × 6,888.12
  4. Step 4: Simplify right side
    12,477.16x = 118,602,543.17
  5. Step 5: Solve for x
    x = 118,602,543.17/12,477.16
  6. Step 6: Final answer
    x = 9,505.57

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Half scale
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Double scale
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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.