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Finding the Fourth Proportional to 8,762.50, 13,143.27 and 3,572.74

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Solution

The fourth proportional to 8,762.50, 13,143.27 and 3,572.74 is: 5,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.50 : 13,143.27 = 3,572.74 : x
  2. Step 2: Convert to fraction form
    8,762.50/13,143.27 = 3,572.74/x
  3. Step 3: Cross multiply
    8,762.50x = 13,143.27 × 3,572.74
  4. Step 4: Simplify right side
    8,762.50x = 46,957,486.46
  5. Step 5: Solve for x
    x = 46,957,486.46/8,762.50
  6. Step 6: Final answer
    x = 5,358.91

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Double scale
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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.