Home / 13,962.18-20,913.20-6,555.54

Finding the Fourth Proportional to 13,962.18, 20,913.20 and 6,555.54

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Solution

The fourth proportional to 13,962.18, 20,913.20 and 6,555.54 is: 9,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.18 : 20,913.20 = 6,555.54 : x
  2. Step 2: Convert to fraction form
    13,962.18/20,913.20 = 6,555.54/x
  3. Step 3: Cross multiply
    13,962.18x = 20,913.20 × 6,555.54
  4. Step 4: Simplify right side
    13,962.18x = 137,097,319.13
  5. Step 5: Solve for x
    x = 137,097,319.13/13,962.18
  6. Step 6: Final answer
    x = 9,819.19

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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.