Home / 14,158.60-21,217.75-10,431.52

Finding the Fourth Proportional to 14,158.60, 21,217.75 and 10,431.52

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Solution

The fourth proportional to 14,158.60, 21,217.75 and 10,431.52 is: 15,632.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.60 : 21,217.75 = 10,431.52 : x
  2. Step 2: Convert to fraction form
    14,158.60/21,217.75 = 10,431.52/x
  3. Step 3: Cross multiply
    14,158.60x = 21,217.75 × 10,431.52
  4. Step 4: Simplify right side
    14,158.60x = 221,333,304.36
  5. Step 5: Solve for x
    x = 221,333,304.36/14,158.60
  6. Step 6: Final answer
    x = 15,632.43

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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.