Home / 11,388.50-15,715.04-6,352.32

Finding the Fourth Proportional to 11,388.50, 15,715.04 and 6,352.32

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Solution

The fourth proportional to 11,388.50, 15,715.04 and 6,352.32 is: 8,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.50 : 15,715.04 = 6,352.32 : x
  2. Step 2: Convert to fraction form
    11,388.50/15,715.04 = 6,352.32/x
  3. Step 3: Cross multiply
    11,388.50x = 15,715.04 × 6,352.32
  4. Step 4: Simplify right side
    11,388.50x = 99,826,931.13
  5. Step 5: Solve for x
    x = 99,826,931.13/11,388.50
  6. Step 6: Final answer
    x = 8,765.59

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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.