Home / 15,061.03-20,784.18-8,255.21

Finding the Fourth Proportional to 15,061.03, 20,784.18 and 8,255.21

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Solution

The fourth proportional to 15,061.03, 20,784.18 and 8,255.21 is: 11,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.03 : 20,784.18 = 8,255.21 : x
  2. Step 2: Convert to fraction form
    15,061.03/20,784.18 = 8,255.21/x
  3. Step 3: Cross multiply
    15,061.03x = 20,784.18 × 8,255.21
  4. Step 4: Simplify right side
    15,061.03x = 171,577,770.58
  5. Step 5: Solve for x
    x = 171,577,770.58/15,061.03
  6. Step 6: Final answer
    x = 11,392.17

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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.