Home / 8,281.17-12,426.21-6,435.99

Finding the Fourth Proportional to 8,281.17, 12,426.21 and 6,435.99

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Solution

The fourth proportional to 8,281.17, 12,426.21 and 6,435.99 is: 9,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.17 : 12,426.21 = 6,435.99 : x
  2. Step 2: Convert to fraction form
    8,281.17/12,426.21 = 6,435.99/x
  3. Step 3: Cross multiply
    8,281.17x = 12,426.21 × 6,435.99
  4. Step 4: Simplify right side
    8,281.17x = 79,974,963.30
  5. Step 5: Solve for x
    x = 79,974,963.30/8,281.17
  6. Step 6: Final answer
    x = 9,657.45

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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.