Home / 12,955.91-19,443.47-9,631.85

Finding the Fourth Proportional to 12,955.91, 19,443.47 and 9,631.85

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Solution

The fourth proportional to 12,955.91, 19,443.47 and 9,631.85 is: 14,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.91 : 19,443.47 = 9,631.85 : x
  2. Step 2: Convert to fraction form
    12,955.91/19,443.47 = 9,631.85/x
  3. Step 3: Cross multiply
    12,955.91x = 19,443.47 × 9,631.85
  4. Step 4: Simplify right side
    12,955.91x = 187,276,441.14
  5. Step 5: Solve for x
    x = 187,276,441.14/12,955.91
  6. Step 6: Final answer
    x = 14,454.91

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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.