Home / 12,959.80-19,439.70-9,273.40

Finding the Fourth Proportional to 12,959.80, 19,439.70 and 9,273.40

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Solution

The fourth proportional to 12,959.80, 19,439.70 and 9,273.40 is: 13,910.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.80 : 19,439.70 = 9,273.40 : x
  2. Step 2: Convert to fraction form
    12,959.80/19,439.70 = 9,273.40/x
  3. Step 3: Cross multiply
    12,959.80x = 19,439.70 × 9,273.40
  4. Step 4: Simplify right side
    12,959.80x = 180,272,113.98
  5. Step 5: Solve for x
    x = 180,272,113.98/12,959.80
  6. Step 6: Final answer
    x = 13,910.10

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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.