Home / 9,011.28-12,424.32-6,889.44

Finding the Fourth Proportional to 9,011.28, 12,424.32 and 6,889.44

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Solution

The fourth proportional to 9,011.28, 12,424.32 and 6,889.44 is: 9,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.28 : 12,424.32 = 6,889.44 : x
  2. Step 2: Convert to fraction form
    9,011.28/12,424.32 = 6,889.44/x
  3. Step 3: Cross multiply
    9,011.28x = 12,424.32 × 6,889.44
  4. Step 4: Simplify right side
    9,011.28x = 85,596,607.18
  5. Step 5: Solve for x
    x = 85,596,607.18/9,011.28
  6. Step 6: Final answer
    x = 9,498.83

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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.