Home / 13,417.89-20,116.25-8,477.10

Finding the Fourth Proportional to 13,417.89, 20,116.25 and 8,477.10

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Solution

The fourth proportional to 13,417.89, 20,116.25 and 8,477.10 is: 12,708.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.89 : 20,116.25 = 8,477.10 : x
  2. Step 2: Convert to fraction form
    13,417.89/20,116.25 = 8,477.10/x
  3. Step 3: Cross multiply
    13,417.89x = 20,116.25 × 8,477.10
  4. Step 4: Simplify right side
    13,417.89x = 170,527,420.49
  5. Step 5: Solve for x
    x = 170,527,420.49/13,417.89
  6. Step 6: Final answer
    x = 12,708.96

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Half scale
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Double scale
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Similar ratio
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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.