Home / 10,942.24-15,073.95-8,703.40

Finding the Fourth Proportional to 10,942.24, 15,073.95 and 8,703.40

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Solution

The fourth proportional to 10,942.24, 15,073.95 and 8,703.40 is: 11,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,942.24 : 15,073.95 = 8,703.40 : x
  2. Step 2: Convert to fraction form
    10,942.24/15,073.95 = 8,703.40/x
  3. Step 3: Cross multiply
    10,942.24x = 15,073.95 × 8,703.40
  4. Step 4: Simplify right side
    10,942.24x = 131,194,616.43
  5. Step 5: Solve for x
    x = 131,194,616.43/10,942.24
  6. Step 6: Final answer
    x = 11,989.74

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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.