Home / 10,271.61-15,420.65-5,344.65

Finding the Fourth Proportional to 10,271.61, 15,420.65 and 5,344.65

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Solution

The fourth proportional to 10,271.61, 15,420.65 and 5,344.65 is: 8,023.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,271.61 : 15,420.65 = 5,344.65 : x
  2. Step 2: Convert to fraction form
    10,271.61/15,420.65 = 5,344.65/x
  3. Step 3: Cross multiply
    10,271.61x = 15,420.65 × 5,344.65
  4. Step 4: Simplify right side
    10,271.61x = 82,417,950.30
  5. Step 5: Solve for x
    x = 82,417,950.30/10,271.61
  6. Step 6: Final answer
    x = 8,023.86

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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.