Home / 15,015.40-22,539.30-8,454.40

Finding the Fourth Proportional to 15,015.40, 22,539.30 and 8,454.40

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Solution

The fourth proportional to 15,015.40, 22,539.30 and 8,454.40 is: 12,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.40 : 22,539.30 = 8,454.40 : x
  2. Step 2: Convert to fraction form
    15,015.40/22,539.30 = 8,454.40/x
  3. Step 3: Cross multiply
    15,015.40x = 22,539.30 × 8,454.40
  4. Step 4: Simplify right side
    15,015.40x = 190,556,257.92
  5. Step 5: Solve for x
    x = 190,556,257.92/15,015.40
  6. Step 6: Final answer
    x = 12,690.72

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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.