Home / 15,074.84-20,785.20-9,767.72

Finding the Fourth Proportional to 15,074.84, 20,785.20 and 9,767.72

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Solution

The fourth proportional to 15,074.84, 20,785.20 and 9,767.72 is: 13,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.84 : 20,785.20 = 9,767.72 : x
  2. Step 2: Convert to fraction form
    15,074.84/20,785.20 = 9,767.72/x
  3. Step 3: Cross multiply
    15,074.84x = 20,785.20 × 9,767.72
  4. Step 4: Simplify right side
    15,074.84x = 203,024,013.74
  5. Step 5: Solve for x
    x = 203,024,013.74/15,074.84
  6. Step 6: Final answer
    x = 13,467.74

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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.