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Finding the Fourth Proportional to 6,416.76, 9,630.64 and 4,572.40

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Solution

The fourth proportional to 6,416.76, 9,630.64 and 4,572.40 is: 6,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.76 : 9,630.64 = 4,572.40 : x
  2. Step 2: Convert to fraction form
    6,416.76/9,630.64 = 4,572.40/x
  3. Step 3: Cross multiply
    6,416.76x = 9,630.64 × 4,572.40
  4. Step 4: Simplify right side
    6,416.76x = 44,035,138.34
  5. Step 5: Solve for x
    x = 44,035,138.34/6,416.76
  6. Step 6: Final answer
    x = 6,862.52

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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.