Home / 13,011.32-19,519.40-4,248.72

Finding the Fourth Proportional to 13,011.32, 19,519.40 and 4,248.72

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Solution

The fourth proportional to 13,011.32, 19,519.40 and 4,248.72 is: 6,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.32 : 19,519.40 = 4,248.72 : x
  2. Step 2: Convert to fraction form
    13,011.32/19,519.40 = 4,248.72/x
  3. Step 3: Cross multiply
    13,011.32x = 19,519.40 × 4,248.72
  4. Step 4: Simplify right side
    13,011.32x = 82,932,465.17
  5. Step 5: Solve for x
    x = 82,932,465.17/13,011.32
  6. Step 6: Final answer
    x = 6,373.87

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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.