Home / 10,870.20-15,000.93-6,393.96

Finding the Fourth Proportional to 10,870.20, 15,000.93 and 6,393.96

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Solution

The fourth proportional to 10,870.20, 15,000.93 and 6,393.96 is: 8,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.20 : 15,000.93 = 6,393.96 : x
  2. Step 2: Convert to fraction form
    10,870.20/15,000.93 = 6,393.96/x
  3. Step 3: Cross multiply
    10,870.20x = 15,000.93 × 6,393.96
  4. Step 4: Simplify right side
    10,870.20x = 95,915,346.38
  5. Step 5: Solve for x
    x = 95,915,346.38/10,870.20
  6. Step 6: Final answer
    x = 8,823.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.