Home / 12,956.91-19,439.52-4,631.28

Finding the Fourth Proportional to 12,956.91, 19,439.52 and 4,631.28

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Solution

The fourth proportional to 12,956.91, 19,439.52 and 4,631.28 is: 6,948.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.91 : 19,439.52 = 4,631.28 : x
  2. Step 2: Convert to fraction form
    12,956.91/19,439.52 = 4,631.28/x
  3. Step 3: Cross multiply
    12,956.91x = 19,439.52 × 4,631.28
  4. Step 4: Simplify right side
    12,956.91x = 90,029,860.19
  5. Step 5: Solve for x
    x = 90,029,860.19/12,956.91
  6. Step 6: Final answer
    x = 6,948.41

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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.