Home / 11,376.97-15,715.55-10,315.93

Finding the Fourth Proportional to 11,376.97, 15,715.55 and 10,315.93

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Solution

The fourth proportional to 11,376.97, 15,715.55 and 10,315.93 is: 14,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.97 : 15,715.55 = 10,315.93 : x
  2. Step 2: Convert to fraction form
    11,376.97/15,715.55 = 10,315.93/x
  3. Step 3: Cross multiply
    11,376.97x = 15,715.55 × 10,315.93
  4. Step 4: Simplify right side
    11,376.97x = 162,120,513.71
  5. Step 5: Solve for x
    x = 162,120,513.71/11,376.97
  6. Step 6: Final answer
    x = 14,249.88

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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.