Home / 10,135.91-15,199.95-4,867.57

Finding the Fourth Proportional to 10,135.91, 15,199.95 and 4,867.57

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Solution

The fourth proportional to 10,135.91, 15,199.95 and 4,867.57 is: 7,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.91 : 15,199.95 = 4,867.57 : x
  2. Step 2: Convert to fraction form
    10,135.91/15,199.95 = 4,867.57/x
  3. Step 3: Cross multiply
    10,135.91x = 15,199.95 × 4,867.57
  4. Step 4: Simplify right side
    10,135.91x = 73,986,820.62
  5. Step 5: Solve for x
    x = 73,986,820.62/10,135.91
  6. Step 6: Final answer
    x = 7,299.47

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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.