Home / 15,990.49-23,985.79-4,897.13

Finding the Fourth Proportional to 15,990.49, 23,985.79 and 4,897.13

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Solution

The fourth proportional to 15,990.49, 23,985.79 and 4,897.13 is: 7,345.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.49 : 23,985.79 = 4,897.13 : x
  2. Step 2: Convert to fraction form
    15,990.49/23,985.79 = 4,897.13/x
  3. Step 3: Cross multiply
    15,990.49x = 23,985.79 × 4,897.13
  4. Step 4: Simplify right side
    15,990.49x = 117,461,531.78
  5. Step 5: Solve for x
    x = 117,461,531.78/15,990.49
  6. Step 6: Final answer
    x = 7,345.71

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.