Home / 9,979.95-13,772.16-5,504.13

Finding the Fourth Proportional to 9,979.95, 13,772.16 and 5,504.13

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Solution

The fourth proportional to 9,979.95, 13,772.16 and 5,504.13 is: 7,595.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.95 : 13,772.16 = 5,504.13 : x
  2. Step 2: Convert to fraction form
    9,979.95/13,772.16 = 5,504.13/x
  3. Step 3: Cross multiply
    9,979.95x = 13,772.16 × 5,504.13
  4. Step 4: Simplify right side
    9,979.95x = 75,803,759.02
  5. Step 5: Solve for x
    x = 75,803,759.02/9,979.95
  6. Step 6: Final answer
    x = 7,595.61

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1.5x scale

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.