Home / 10,123.20-15,165.77-6,830.55

Finding the Fourth Proportional to 10,123.20, 15,165.77 and 6,830.55

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Solution

The fourth proportional to 10,123.20, 15,165.77 and 6,830.55 is: 10,232.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.20 : 15,165.77 = 6,830.55 : x
  2. Step 2: Convert to fraction form
    10,123.20/15,165.77 = 6,830.55/x
  3. Step 3: Cross multiply
    10,123.20x = 15,165.77 × 6,830.55
  4. Step 4: Simplify right side
    10,123.20x = 103,590,516.12
  5. Step 5: Solve for x
    x = 103,590,516.12/10,123.20
  6. Step 6: Final answer
    x = 10,232.98

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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.