Home / 10,113.23-15,178.35-5,187.62

Finding the Fourth Proportional to 10,113.23, 15,178.35 and 5,187.62

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Solution

The fourth proportional to 10,113.23, 15,178.35 and 5,187.62 is: 7,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,113.23 : 15,178.35 = 5,187.62 : x
  2. Step 2: Convert to fraction form
    10,113.23/15,178.35 = 5,187.62/x
  3. Step 3: Cross multiply
    10,113.23x = 15,178.35 × 5,187.62
  4. Step 4: Simplify right side
    10,113.23x = 78,739,512.03
  5. Step 5: Solve for x
    x = 78,739,512.03/10,113.23
  6. Step 6: Final answer
    x = 7,785.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.