Home / 15,150.29-20,924.89-10,105.74

Finding the Fourth Proportional to 15,150.29, 20,924.89 and 10,105.74

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Solution

The fourth proportional to 15,150.29, 20,924.89 and 10,105.74 is: 13,957.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.29 : 20,924.89 = 10,105.74 : x
  2. Step 2: Convert to fraction form
    15,150.29/20,924.89 = 10,105.74/x
  3. Step 3: Cross multiply
    15,150.29x = 20,924.89 × 10,105.74
  4. Step 4: Simplify right side
    15,150.29x = 211,461,472.60
  5. Step 5: Solve for x
    x = 211,461,472.60/15,150.29
  6. Step 6: Final answer
    x = 13,957.59

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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.