Home / 11,351.59-15,664.95-6,315.62

Finding the Fourth Proportional to 11,351.59, 15,664.95 and 6,315.62

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Solution

The fourth proportional to 11,351.59, 15,664.95 and 6,315.62 is: 8,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.59 : 15,664.95 = 6,315.62 : x
  2. Step 2: Convert to fraction form
    11,351.59/15,664.95 = 6,315.62/x
  3. Step 3: Cross multiply
    11,351.59x = 15,664.95 × 6,315.62
  4. Step 4: Simplify right side
    11,351.59x = 98,933,793.19
  5. Step 5: Solve for x
    x = 98,933,793.19/11,351.59
  6. Step 6: Final answer
    x = 8,715.41

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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.