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Finding the Fourth Proportional to 7,502.10, 10,345.11 and 6,443.37

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Solution

The fourth proportional to 7,502.10, 10,345.11 and 6,443.37 is: 8,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,502.10 : 10,345.11 = 6,443.37 : x
  2. Step 2: Convert to fraction form
    7,502.10/10,345.11 = 6,443.37/x
  3. Step 3: Cross multiply
    7,502.10x = 10,345.11 × 6,443.37
  4. Step 4: Simplify right side
    7,502.10x = 66,657,371.42
  5. Step 5: Solve for x
    x = 66,657,371.42/7,502.10
  6. Step 6: Final answer
    x = 8,885.16

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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.