Home / 9,635.18-13,280.63-6,447.32

Finding the Fourth Proportional to 9,635.18, 13,280.63 and 6,447.32

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Solution

The fourth proportional to 9,635.18, 13,280.63 and 6,447.32 is: 8,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,635.18 : 13,280.63 = 6,447.32 : x
  2. Step 2: Convert to fraction form
    9,635.18/13,280.63 = 6,447.32/x
  3. Step 3: Cross multiply
    9,635.18x = 13,280.63 × 6,447.32
  4. Step 4: Simplify right side
    9,635.18x = 85,624,472.38
  5. Step 5: Solve for x
    x = 85,624,472.38/9,635.18
  6. Step 6: Final answer
    x = 8,886.65

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Half scale
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Double scale
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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.