Home / 9,010.48-12,428.18-8,266.90

Finding the Fourth Proportional to 9,010.48, 12,428.18 and 8,266.90

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Solution

The fourth proportional to 9,010.48, 12,428.18 and 8,266.90 is: 11,402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010.48 : 12,428.18 = 8,266.90 : x
  2. Step 2: Convert to fraction form
    9,010.48/12,428.18 = 8,266.90/x
  3. Step 3: Cross multiply
    9,010.48x = 12,428.18 × 8,266.90
  4. Step 4: Simplify right side
    9,010.48x = 102,742,521.24
  5. Step 5: Solve for x
    x = 102,742,521.24/9,010.48
  6. Step 6: Final answer
    x = 11,402.56

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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.