Home / 10,916.88-15,067.72-6,937.21

Finding the Fourth Proportional to 10,916.88, 15,067.72 and 6,937.21

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Solution

The fourth proportional to 10,916.88, 15,067.72 and 6,937.21 is: 9,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.88 : 15,067.72 = 6,937.21 : x
  2. Step 2: Convert to fraction form
    10,916.88/15,067.72 = 6,937.21/x
  3. Step 3: Cross multiply
    10,916.88x = 15,067.72 × 6,937.21
  4. Step 4: Simplify right side
    10,916.88x = 104,527,937.86
  5. Step 5: Solve for x
    x = 104,527,937.86/10,916.88
  6. Step 6: Final answer
    x = 9,574.89

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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.