Home / 15,190.28-20,947.26-10,154.52

Finding the Fourth Proportional to 15,190.28, 20,947.26 and 10,154.52

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Solution

The fourth proportional to 15,190.28, 20,947.26 and 10,154.52 is: 14,002.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.28 : 20,947.26 = 10,154.52 : x
  2. Step 2: Convert to fraction form
    15,190.28/20,947.26 = 10,154.52/x
  3. Step 3: Cross multiply
    15,190.28x = 20,947.26 × 10,154.52
  4. Step 4: Simplify right side
    15,190.28x = 212,709,370.62
  5. Step 5: Solve for x
    x = 212,709,370.62/15,190.28
  6. Step 6: Final answer
    x = 14,002.99

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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.