Home / 13,585.66-20,377.88-4,820.45

Finding the Fourth Proportional to 13,585.66, 20,377.88 and 4,820.45

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Solution

The fourth proportional to 13,585.66, 20,377.88 and 4,820.45 is: 7,230.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.66 : 20,377.88 = 4,820.45 : x
  2. Step 2: Convert to fraction form
    13,585.66/20,377.88 = 4,820.45/x
  3. Step 3: Cross multiply
    13,585.66x = 20,377.88 × 4,820.45
  4. Step 4: Simplify right side
    13,585.66x = 98,230,443.73
  5. Step 5: Solve for x
    x = 98,230,443.73/13,585.66
  6. Step 6: Final answer
    x = 7,230.45

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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.