Home / 8,445.49-12,641.07-4,491.29

Finding the Fourth Proportional to 8,445.49, 12,641.07 and 4,491.29

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Solution

The fourth proportional to 8,445.49, 12,641.07 and 4,491.29 is: 6,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.49 : 12,641.07 = 4,491.29 : x
  2. Step 2: Convert to fraction form
    8,445.49/12,641.07 = 4,491.29/x
  3. Step 3: Cross multiply
    8,445.49x = 12,641.07 × 4,491.29
  4. Step 4: Simplify right side
    8,445.49x = 56,774,711.28
  5. Step 5: Solve for x
    x = 56,774,711.28/8,445.49
  6. Step 6: Final answer
    x = 6,722.49

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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.