Home / 14,418.40-19,901.28-9,114.88

Finding the Fourth Proportional to 14,418.40, 19,901.28 and 9,114.88

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Solution

The fourth proportional to 14,418.40, 19,901.28 and 9,114.88 is: 12,580.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.40 : 19,901.28 = 9,114.88 : x
  2. Step 2: Convert to fraction form
    14,418.40/19,901.28 = 9,114.88/x
  3. Step 3: Cross multiply
    14,418.40x = 19,901.28 × 9,114.88
  4. Step 4: Simplify right side
    14,418.40x = 181,397,779.05
  5. Step 5: Solve for x
    x = 181,397,779.05/14,418.40
  6. Step 6: Final answer
    x = 12,580.99

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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.