Home / 10,275.28-14,180-5,559.68

Finding the Fourth Proportional to 10,275.28, 14,180 and 5,559.68

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Solution

The fourth proportional to 10,275.28, 14,180 and 5,559.68 is: 7,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.28 : 14,180 = 5,559.68 : x
  2. Step 2: Convert to fraction form
    10,275.28/14,180 = 5,559.68/x
  3. Step 3: Cross multiply
    10,275.28x = 14,180 × 5,559.68
  4. Step 4: Simplify right side
    10,275.28x = 78,836,262.40
  5. Step 5: Solve for x
    x = 78,836,262.40/10,275.28
  6. Step 6: Final answer
    x = 7,672.42

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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.