Home / 11,988.64-16,557.23-9,125.47

Finding the Fourth Proportional to 11,988.64, 16,557.23 and 9,125.47

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Solution

The fourth proportional to 11,988.64, 16,557.23 and 9,125.47 is: 12,602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.64 : 16,557.23 = 9,125.47 : x
  2. Step 2: Convert to fraction form
    11,988.64/16,557.23 = 9,125.47/x
  3. Step 3: Cross multiply
    11,988.64x = 16,557.23 × 9,125.47
  4. Step 4: Simplify right side
    11,988.64x = 151,092,377.23
  5. Step 5: Solve for x
    x = 151,092,377.23/11,988.64
  6. Step 6: Final answer
    x = 12,602.97

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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.