Home / 10,143.23-15,216.28-3,123.83

Finding the Fourth Proportional to 10,143.23, 15,216.28 and 3,123.83

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Solution

The fourth proportional to 10,143.23, 15,216.28 and 3,123.83 is: 4,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.23 : 15,216.28 = 3,123.83 : x
  2. Step 2: Convert to fraction form
    10,143.23/15,216.28 = 3,123.83/x
  3. Step 3: Cross multiply
    10,143.23x = 15,216.28 × 3,123.83
  4. Step 4: Simplify right side
    10,143.23x = 47,533,102.18
  5. Step 5: Solve for x
    x = 47,533,102.18/10,143.23
  6. Step 6: Final answer
    x = 4,686.19

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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.