Home / 11,689.47-16,130.81-6,654.92

Finding the Fourth Proportional to 11,689.47, 16,130.81 and 6,654.92

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Solution

The fourth proportional to 11,689.47, 16,130.81 and 6,654.92 is: 9,183.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.47 : 16,130.81 = 6,654.92 : x
  2. Step 2: Convert to fraction form
    11,689.47/16,130.81 = 6,654.92/x
  3. Step 3: Cross multiply
    11,689.47x = 16,130.81 × 6,654.92
  4. Step 4: Simplify right side
    11,689.47x = 107,349,186.07
  5. Step 5: Solve for x
    x = 107,349,186.07/11,689.47
  6. Step 6: Final answer
    x = 9,183.41

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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.