Home / 8,431.32-11,635.20-4,654.50

Finding the Fourth Proportional to 8,431.32, 11,635.20 and 4,654.50

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Solution

The fourth proportional to 8,431.32, 11,635.20 and 4,654.50 is: 6,423.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.32 : 11,635.20 = 4,654.50 : x
  2. Step 2: Convert to fraction form
    8,431.32/11,635.20 = 4,654.50/x
  3. Step 3: Cross multiply
    8,431.32x = 11,635.20 × 4,654.50
  4. Step 4: Simplify right side
    8,431.32x = 54,156,038.40
  5. Step 5: Solve for x
    x = 54,156,038.40/8,431.32
  6. Step 6: Final answer
    x = 6,423.20

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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.