Home / 13,015.20-19,522.86-3,154.47

Finding the Fourth Proportional to 13,015.20, 19,522.86 and 3,154.47

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Solution

The fourth proportional to 13,015.20, 19,522.86 and 3,154.47 is: 4,731.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.20 : 19,522.86 = 3,154.47 : x
  2. Step 2: Convert to fraction form
    13,015.20/19,522.86 = 3,154.47/x
  3. Step 3: Cross multiply
    13,015.20x = 19,522.86 × 3,154.47
  4. Step 4: Simplify right side
    13,015.20x = 61,584,276.18
  5. Step 5: Solve for x
    x = 61,584,276.18/13,015.20
  6. Step 6: Final answer
    x = 4,731.72

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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.