Home / 10,225.76-15,338.60-4,378.56

Finding the Fourth Proportional to 10,225.76, 15,338.60 and 4,378.56

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Solution

The fourth proportional to 10,225.76, 15,338.60 and 4,378.56 is: 6,567.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,225.76 : 15,338.60 = 4,378.56 : x
  2. Step 2: Convert to fraction form
    10,225.76/15,338.60 = 4,378.56/x
  3. Step 3: Cross multiply
    10,225.76x = 15,338.60 × 4,378.56
  4. Step 4: Simplify right side
    10,225.76x = 67,160,980.42
  5. Step 5: Solve for x
    x = 67,160,980.42/10,225.76
  6. Step 6: Final answer
    x = 6,567.82

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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.