Home / 12,955.06-19,434.41-6,381.30

Finding the Fourth Proportional to 12,955.06, 19,434.41 and 6,381.30

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Solution

The fourth proportional to 12,955.06, 19,434.41 and 6,381.30 is: 9,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.06 : 19,434.41 = 6,381.30 : x
  2. Step 2: Convert to fraction form
    12,955.06/19,434.41 = 6,381.30/x
  3. Step 3: Cross multiply
    12,955.06x = 19,434.41 × 6,381.30
  4. Step 4: Simplify right side
    12,955.06x = 124,016,800.53
  5. Step 5: Solve for x
    x = 124,016,800.53/12,955.06
  6. Step 6: Final answer
    x = 9,572.85

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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.