Home / 10,339.04-15,510.30-3,318.92

Finding the Fourth Proportional to 10,339.04, 15,510.30 and 3,318.92

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Solution

The fourth proportional to 10,339.04, 15,510.30 and 3,318.92 is: 4,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.04 : 15,510.30 = 3,318.92 : x
  2. Step 2: Convert to fraction form
    10,339.04/15,510.30 = 3,318.92/x
  3. Step 3: Cross multiply
    10,339.04x = 15,510.30 × 3,318.92
  4. Step 4: Simplify right side
    10,339.04x = 51,477,367.32
  5. Step 5: Solve for x
    x = 51,477,367.32/10,339.04
  6. Step 6: Final answer
    x = 4,978.93

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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.