Home / 10,366.32-15,549.44-8,631.28

Finding the Fourth Proportional to 10,366.32, 15,549.44 and 8,631.28

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Solution

The fourth proportional to 10,366.32, 15,549.44 and 8,631.28 is: 12,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.32 : 15,549.44 = 8,631.28 : x
  2. Step 2: Convert to fraction form
    10,366.32/15,549.44 = 8,631.28/x
  3. Step 3: Cross multiply
    10,366.32x = 15,549.44 × 8,631.28
  4. Step 4: Simplify right side
    10,366.32x = 134,211,570.48
  5. Step 5: Solve for x
    x = 134,211,570.48/10,366.32
  6. Step 6: Final answer
    x = 12,946.89

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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.