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Finding the Fourth Proportional to 8,580.48, 12,870.68 and 5,637.48

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Solution

The fourth proportional to 8,580.48, 12,870.68 and 5,637.48 is: 8,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.48 : 12,870.68 = 5,637.48 : x
  2. Step 2: Convert to fraction form
    8,580.48/12,870.68 = 5,637.48/x
  3. Step 3: Cross multiply
    8,580.48x = 12,870.68 × 5,637.48
  4. Step 4: Simplify right side
    8,580.48x = 72,558,172.90
  5. Step 5: Solve for x
    x = 72,558,172.90/8,580.48
  6. Step 6: Final answer
    x = 8,456.19

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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.