Home / 11,124.24-15,357.01-6,407.61

Finding the Fourth Proportional to 11,124.24, 15,357.01 and 6,407.61

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Solution

The fourth proportional to 11,124.24, 15,357.01 and 6,407.61 is: 8,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.24 : 15,357.01 = 6,407.61 : x
  2. Step 2: Convert to fraction form
    11,124.24/15,357.01 = 6,407.61/x
  3. Step 3: Cross multiply
    11,124.24x = 15,357.01 × 6,407.61
  4. Step 4: Simplify right side
    11,124.24x = 98,401,730.85
  5. Step 5: Solve for x
    x = 98,401,730.85/11,124.24
  6. Step 6: Final answer
    x = 8,845.70

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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.