Home / 9,328.24-13,988.40-3,480.76

Finding the Fourth Proportional to 9,328.24, 13,988.40 and 3,480.76

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Solution

The fourth proportional to 9,328.24, 13,988.40 and 3,480.76 is: 5,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.24 : 13,988.40 = 3,480.76 : x
  2. Step 2: Convert to fraction form
    9,328.24/13,988.40 = 3,480.76/x
  3. Step 3: Cross multiply
    9,328.24x = 13,988.40 × 3,480.76
  4. Step 4: Simplify right side
    9,328.24x = 48,690,263.18
  5. Step 5: Solve for x
    x = 48,690,263.18/9,328.24
  6. Step 6: Final answer
    x = 5,219.66

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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.