Home / 10,342.85-15,515.98-4,102.89

Finding the Fourth Proportional to 10,342.85, 15,515.98 and 4,102.89

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Solution

The fourth proportional to 10,342.85, 15,515.98 and 4,102.89 is: 6,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.85 : 15,515.98 = 4,102.89 : x
  2. Step 2: Convert to fraction form
    10,342.85/15,515.98 = 4,102.89/x
  3. Step 3: Cross multiply
    10,342.85x = 15,515.98 × 4,102.89
  4. Step 4: Simplify right side
    10,342.85x = 63,660,359.18
  5. Step 5: Solve for x
    x = 63,660,359.18/10,342.85
  6. Step 6: Final answer
    x = 6,155.01

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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.