Home / 12,955.20-19,397.16-9,825.96

Finding the Fourth Proportional to 12,955.20, 19,397.16 and 9,825.96

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Solution

The fourth proportional to 12,955.20, 19,397.16 and 9,825.96 is: 14,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,955.20 : 19,397.16 = 9,825.96 : x
  2. Step 2: Convert to fraction form
    12,955.20/19,397.16 = 9,825.96/x
  3. Step 3: Cross multiply
    12,955.20x = 19,397.16 × 9,825.96
  4. Step 4: Simplify right side
    12,955.20x = 190,595,718.27
  5. Step 5: Solve for x
    x = 190,595,718.27/12,955.20
  6. Step 6: Final answer
    x = 14,711.91

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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.