Home / 10,367.80-15,539.55-5,434.90

Finding the Fourth Proportional to 10,367.80, 15,539.55 and 5,434.90

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Solution

The fourth proportional to 10,367.80, 15,539.55 and 5,434.90 is: 8,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.80 : 15,539.55 = 5,434.90 : x
  2. Step 2: Convert to fraction form
    10,367.80/15,539.55 = 5,434.90/x
  3. Step 3: Cross multiply
    10,367.80x = 15,539.55 × 5,434.90
  4. Step 4: Simplify right side
    10,367.80x = 84,455,900.30
  5. Step 5: Solve for x
    x = 84,455,900.30/10,367.80
  6. Step 6: Final answer
    x = 8,145.98

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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.