Home / 10,632.20-15,948.30-10,555.40

Finding the Fourth Proportional to 10,632.20, 15,948.30 and 10,555.40

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Solution

The fourth proportional to 10,632.20, 15,948.30 and 10,555.40 is: 15,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,632.20 : 15,948.30 = 10,555.40 : x
  2. Step 2: Convert to fraction form
    10,632.20/15,948.30 = 10,555.40/x
  3. Step 3: Cross multiply
    10,632.20x = 15,948.30 × 10,555.40
  4. Step 4: Simplify right side
    10,632.20x = 168,340,685.82
  5. Step 5: Solve for x
    x = 168,340,685.82/10,632.20
  6. Step 6: Final answer
    x = 15,833.10

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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.