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Finding the Fourth Proportional to 8,931.08, 12,326.36 and 8,537.36

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Solution

The fourth proportional to 8,931.08, 12,326.36 and 8,537.36 is: 11,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.08 : 12,326.36 = 8,537.36 : x
  2. Step 2: Convert to fraction form
    8,931.08/12,326.36 = 8,537.36/x
  3. Step 3: Cross multiply
    8,931.08x = 12,326.36 × 8,537.36
  4. Step 4: Simplify right side
    8,931.08x = 105,234,572.81
  5. Step 5: Solve for x
    x = 105,234,572.81/8,931.08
  6. Step 6: Final answer
    x = 11,782.96

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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.