Home / 14,956.69-20,640.36-8,242.55

Finding the Fourth Proportional to 14,956.69, 20,640.36 and 8,242.55

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Solution

The fourth proportional to 14,956.69, 20,640.36 and 8,242.55 is: 11,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.69 : 20,640.36 = 8,242.55 : x
  2. Step 2: Convert to fraction form
    14,956.69/20,640.36 = 8,242.55/x
  3. Step 3: Cross multiply
    14,956.69x = 20,640.36 × 8,242.55
  4. Step 4: Simplify right side
    14,956.69x = 170,129,199.32
  5. Step 5: Solve for x
    x = 170,129,199.32/14,956.69
  6. Step 6: Final answer
    x = 11,374.79

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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.