Home / 10,979.88-15,154.47-7,444.23

Finding the Fourth Proportional to 10,979.88, 15,154.47 and 7,444.23

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Solution

The fourth proportional to 10,979.88, 15,154.47 and 7,444.23 is: 10,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.88 : 15,154.47 = 7,444.23 : x
  2. Step 2: Convert to fraction form
    10,979.88/15,154.47 = 7,444.23/x
  3. Step 3: Cross multiply
    10,979.88x = 15,154.47 × 7,444.23
  4. Step 4: Simplify right side
    10,979.88x = 112,813,360.21
  5. Step 5: Solve for x
    x = 112,813,360.21/10,979.88
  6. Step 6: Final answer
    x = 10,274.55

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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.