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Finding the Fourth Proportional to 8,980.86, 12,389.13 and 6,000.69

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Solution

The fourth proportional to 8,980.86, 12,389.13 and 6,000.69 is: 8,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.86 : 12,389.13 = 6,000.69 : x
  2. Step 2: Convert to fraction form
    8,980.86/12,389.13 = 6,000.69/x
  3. Step 3: Cross multiply
    8,980.86x = 12,389.13 × 6,000.69
  4. Step 4: Simplify right side
    8,980.86x = 74,343,328.50
  5. Step 5: Solve for x
    x = 74,343,328.50/8,980.86
  6. Step 6: Final answer
    x = 8,277.97

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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.