Home / 14,175.96-19,560.12-9,139.20

Finding the Fourth Proportional to 14,175.96, 19,560.12 and 9,139.20

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Solution

The fourth proportional to 14,175.96, 19,560.12 and 9,139.20 is: 12,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.96 : 19,560.12 = 9,139.20 : x
  2. Step 2: Convert to fraction form
    14,175.96/19,560.12 = 9,139.20/x
  3. Step 3: Cross multiply
    14,175.96x = 19,560.12 × 9,139.20
  4. Step 4: Simplify right side
    14,175.96x = 178,763,848.70
  5. Step 5: Solve for x
    x = 178,763,848.70/14,175.96
  6. Step 6: Final answer
    x = 12,610.35

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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.