Home / 14,581.49-20,122.23-8,535.90

Finding the Fourth Proportional to 14,581.49, 20,122.23 and 8,535.90

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Solution

The fourth proportional to 14,581.49, 20,122.23 and 8,535.90 is: 11,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.49 : 20,122.23 = 8,535.90 : x
  2. Step 2: Convert to fraction form
    14,581.49/20,122.23 = 8,535.90/x
  3. Step 3: Cross multiply
    14,581.49x = 20,122.23 × 8,535.90
  4. Step 4: Simplify right side
    14,581.49x = 171,761,343.06
  5. Step 5: Solve for x
    x = 171,761,343.06/14,581.49
  6. Step 6: Final answer
    x = 11,779.41

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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.