Home / 11,358.24-15,674.40-6,390.24

Finding the Fourth Proportional to 11,358.24, 15,674.40 and 6,390.24

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Solution

The fourth proportional to 11,358.24, 15,674.40 and 6,390.24 is: 8,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.24 : 15,674.40 = 6,390.24 : x
  2. Step 2: Convert to fraction form
    11,358.24/15,674.40 = 6,390.24/x
  3. Step 3: Cross multiply
    11,358.24x = 15,674.40 × 6,390.24
  4. Step 4: Simplify right side
    11,358.24x = 100,163,177.86
  5. Step 5: Solve for x
    x = 100,163,177.86/11,358.24
  6. Step 6: Final answer
    x = 8,818.55

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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.