Home / 13,925.60-20,871.12-6,898.04

Finding the Fourth Proportional to 13,925.60, 20,871.12 and 6,898.04

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Solution

The fourth proportional to 13,925.60, 20,871.12 and 6,898.04 is: 10,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.60 : 20,871.12 = 6,898.04 : x
  2. Step 2: Convert to fraction form
    13,925.60/20,871.12 = 6,898.04/x
  3. Step 3: Cross multiply
    13,925.60x = 20,871.12 × 6,898.04
  4. Step 4: Simplify right side
    13,925.60x = 143,969,820.60
  5. Step 5: Solve for x
    x = 143,969,820.60/13,925.60
  6. Step 6: Final answer
    x = 10,338.50

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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.