Home / 13,444.52-20,139.04-7,880.97

Finding the Fourth Proportional to 13,444.52, 20,139.04 and 7,880.97

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Solution

The fourth proportional to 13,444.52, 20,139.04 and 7,880.97 is: 11,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.52 : 20,139.04 = 7,880.97 : x
  2. Step 2: Convert to fraction form
    13,444.52/20,139.04 = 7,880.97/x
  3. Step 3: Cross multiply
    13,444.52x = 20,139.04 × 7,880.97
  4. Step 4: Simplify right side
    13,444.52x = 158,715,130.66
  5. Step 5: Solve for x
    x = 158,715,130.66/13,444.52
  6. Step 6: Final answer
    x = 11,805.19

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1.5x scale

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.