Home / 13,959.60-19,267.80-7,993.20

Finding the Fourth Proportional to 13,959.60, 19,267.80 and 7,993.20

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Solution

The fourth proportional to 13,959.60, 19,267.80 and 7,993.20 is: 11,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.60 : 19,267.80 = 7,993.20 : x
  2. Step 2: Convert to fraction form
    13,959.60/19,267.80 = 7,993.20/x
  3. Step 3: Cross multiply
    13,959.60x = 19,267.80 × 7,993.20
  4. Step 4: Simplify right side
    13,959.60x = 154,011,378.96
  5. Step 5: Solve for x
    x = 154,011,378.96/13,959.60
  6. Step 6: Final answer
    x = 11,032.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.