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Finding the Fourth Proportional to 8,432.99, 12,642.64 and 7,510.34

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Solution

The fourth proportional to 8,432.99, 12,642.64 and 7,510.34 is: 11,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.99 : 12,642.64 = 7,510.34 : x
  2. Step 2: Convert to fraction form
    8,432.99/12,642.64 = 7,510.34/x
  3. Step 3: Cross multiply
    8,432.99x = 12,642.64 × 7,510.34
  4. Step 4: Simplify right side
    8,432.99x = 94,950,524.90
  5. Step 5: Solve for x
    x = 94,950,524.90/8,432.99
  6. Step 6: Final answer
    x = 11,259.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.