Home / 11,356.39-15,672.55-6,320.59

Finding the Fourth Proportional to 11,356.39, 15,672.55 and 6,320.59

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Solution

The fourth proportional to 11,356.39, 15,672.55 and 6,320.59 is: 8,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.39 : 15,672.55 = 6,320.59 : x
  2. Step 2: Convert to fraction form
    11,356.39/15,672.55 = 6,320.59/x
  3. Step 3: Cross multiply
    11,356.39x = 15,672.55 × 6,320.59
  4. Step 4: Simplify right side
    11,356.39x = 99,059,762.80
  5. Step 5: Solve for x
    x = 99,059,762.80/11,356.39
  6. Step 6: Final answer
    x = 8,722.82

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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.