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Finding the Fourth Proportional to 15,654.58, 21,603.99 and 9,365.74

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Solution

The fourth proportional to 15,654.58, 21,603.99 and 9,365.74 is: 12,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.58 : 21,603.99 = 9,365.74 : x
  2. Step 2: Convert to fraction form
    15,654.58/21,603.99 = 9,365.74/x
  3. Step 3: Cross multiply
    15,654.58x = 21,603.99 × 9,365.74
  4. Step 4: Simplify right side
    15,654.58x = 202,337,353.30
  5. Step 5: Solve for x
    x = 202,337,353.30/15,654.58
  6. Step 6: Final answer
    x = 12,925.12

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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.