Home / 10,129.42-15,195.65-3,554.45

Finding the Fourth Proportional to 10,129.42, 15,195.65 and 3,554.45

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Solution

The fourth proportional to 10,129.42, 15,195.65 and 3,554.45 is: 5,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.42 : 15,195.65 = 3,554.45 : x
  2. Step 2: Convert to fraction form
    10,129.42/15,195.65 = 3,554.45/x
  3. Step 3: Cross multiply
    10,129.42x = 15,195.65 × 3,554.45
  4. Step 4: Simplify right side
    10,129.42x = 54,012,084.39
  5. Step 5: Solve for x
    x = 54,012,084.39/10,129.42
  6. Step 6: Final answer
    x = 5,332.20

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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.