Home / 10,123.70-15,180.28-4,574.39

Finding the Fourth Proportional to 10,123.70, 15,180.28 and 4,574.39

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Solution

The fourth proportional to 10,123.70, 15,180.28 and 4,574.39 is: 6,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.70 : 15,180.28 = 4,574.39 : x
  2. Step 2: Convert to fraction form
    10,123.70/15,180.28 = 4,574.39/x
  3. Step 3: Cross multiply
    10,123.70x = 15,180.28 × 4,574.39
  4. Step 4: Simplify right side
    10,123.70x = 69,440,433.69
  5. Step 5: Solve for x
    x = 69,440,433.69/10,123.70
  6. Step 6: Final answer
    x = 6,859.20

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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.