Home / 12,913.32-19,366.68-5,117.88

Finding the Fourth Proportional to 12,913.32, 19,366.68 and 5,117.88

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Solution

The fourth proportional to 12,913.32, 19,366.68 and 5,117.88 is: 7,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.32 : 19,366.68 = 5,117.88 : x
  2. Step 2: Convert to fraction form
    12,913.32/19,366.68 = 5,117.88/x
  3. Step 3: Cross multiply
    12,913.32x = 19,366.68 × 5,117.88
  4. Step 4: Simplify right side
    12,913.32x = 99,116,344.24
  5. Step 5: Solve for x
    x = 99,116,344.24/12,913.32
  6. Step 6: Final answer
    x = 7,675.51

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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.