Home / 10,581.40-14,630.18-9,269.20

Finding the Fourth Proportional to 10,581.40, 14,630.18 and 9,269.20

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Solution

The fourth proportional to 10,581.40, 14,630.18 and 9,269.20 is: 12,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.40 : 14,630.18 = 9,269.20 : x
  2. Step 2: Convert to fraction form
    10,581.40/14,630.18 = 9,269.20/x
  3. Step 3: Cross multiply
    10,581.40x = 14,630.18 × 9,269.20
  4. Step 4: Simplify right side
    10,581.40x = 135,610,064.46
  5. Step 5: Solve for x
    x = 135,610,064.46/10,581.40
  6. Step 6: Final answer
    x = 12,815.89

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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.