Home / 13,372.48-18,454.28-8,000.45

Finding the Fourth Proportional to 13,372.48, 18,454.28 and 8,000.45

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Solution

The fourth proportional to 13,372.48, 18,454.28 and 8,000.45 is: 11,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.48 : 18,454.28 = 8,000.45 : x
  2. Step 2: Convert to fraction form
    13,372.48/18,454.28 = 8,000.45/x
  3. Step 3: Cross multiply
    13,372.48x = 18,454.28 × 8,000.45
  4. Step 4: Simplify right side
    13,372.48x = 147,642,541.36
  5. Step 5: Solve for x
    x = 147,642,541.36/13,372.48
  6. Step 6: Final answer
    x = 11,040.77

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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.