Home / 10,123.23-15,184.86-4,279.89

Finding the Fourth Proportional to 10,123.23, 15,184.86 and 4,279.89

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Solution

The fourth proportional to 10,123.23, 15,184.86 and 4,279.89 is: 6,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.23 : 15,184.86 = 4,279.89 : x
  2. Step 2: Convert to fraction form
    10,123.23/15,184.86 = 4,279.89/x
  3. Step 3: Cross multiply
    10,123.23x = 15,184.86 × 4,279.89
  4. Step 4: Simplify right side
    10,123.23x = 64,989,530.47
  5. Step 5: Solve for x
    x = 64,989,530.47/10,123.23
  6. Step 6: Final answer
    x = 6,419.84

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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.