Home / 13,965.20-19,271.84-7,677.52

Finding the Fourth Proportional to 13,965.20, 19,271.84 and 7,677.52

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Solution

The fourth proportional to 13,965.20, 19,271.84 and 7,677.52 is: 10,594.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.20 : 19,271.84 = 7,677.52 : x
  2. Step 2: Convert to fraction form
    13,965.20/19,271.84 = 7,677.52/x
  3. Step 3: Cross multiply
    13,965.20x = 19,271.84 × 7,677.52
  4. Step 4: Simplify right side
    13,965.20x = 147,959,937.04
  5. Step 5: Solve for x
    x = 147,959,937.04/13,965.20
  6. Step 6: Final answer
    x = 10,594.90

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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.