Home / 9,010.38-12,432.81-5,031.51

Finding the Fourth Proportional to 9,010.38, 12,432.81 and 5,031.51

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Solution

The fourth proportional to 9,010.38, 12,432.81 and 5,031.51 is: 6,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010.38 : 12,432.81 = 5,031.51 : x
  2. Step 2: Convert to fraction form
    9,010.38/12,432.81 = 5,031.51/x
  3. Step 3: Cross multiply
    9,010.38x = 12,432.81 × 5,031.51
  4. Step 4: Simplify right side
    9,010.38x = 62,555,807.84
  5. Step 5: Solve for x
    x = 62,555,807.84/9,010.38
  6. Step 6: Final answer
    x = 6,942.64

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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.