Home / 15,654.46-21,603.03-8,580.87

Finding the Fourth Proportional to 15,654.46, 21,603.03 and 8,580.87

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Solution

The fourth proportional to 15,654.46, 21,603.03 and 8,580.87 is: 11,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.46 : 21,603.03 = 8,580.87 : x
  2. Step 2: Convert to fraction form
    15,654.46/21,603.03 = 8,580.87/x
  3. Step 3: Cross multiply
    15,654.46x = 21,603.03 × 8,580.87
  4. Step 4: Simplify right side
    15,654.46x = 185,372,792.04
  5. Step 5: Solve for x
    x = 185,372,792.04/15,654.46
  6. Step 6: Final answer
    x = 11,841.53

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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.