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Finding the Fourth Proportional to 8,649.99, 12,927.59 and 6,314.91

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Solution

The fourth proportional to 8,649.99, 12,927.59 and 6,314.91 is: 9,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.99 : 12,927.59 = 6,314.91 : x
  2. Step 2: Convert to fraction form
    8,649.99/12,927.59 = 6,314.91/x
  3. Step 3: Cross multiply
    8,649.99x = 12,927.59 × 6,314.91
  4. Step 4: Simplify right side
    8,649.99x = 81,636,535.79
  5. Step 5: Solve for x
    x = 81,636,535.79/8,649.99
  6. Step 6: Final answer
    x = 9,437.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.