Home / 10,513.79-15,770.33-4,271.95

Finding the Fourth Proportional to 10,513.79, 15,770.33 and 4,271.95

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Solution

The fourth proportional to 10,513.79, 15,770.33 and 4,271.95 is: 6,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.79 : 15,770.33 = 4,271.95 : x
  2. Step 2: Convert to fraction form
    10,513.79/15,770.33 = 4,271.95/x
  3. Step 3: Cross multiply
    10,513.79x = 15,770.33 × 4,271.95
  4. Step 4: Simplify right side
    10,513.79x = 67,370,061.24
  5. Step 5: Solve for x
    x = 67,370,061.24/10,513.79
  6. Step 6: Final answer
    x = 6,407.78

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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.