Home / 13,925.10-19,217.01-7,874.85

Finding the Fourth Proportional to 13,925.10, 19,217.01 and 7,874.85

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Solution

The fourth proportional to 13,925.10, 19,217.01 and 7,874.85 is: 10,867.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.10 : 19,217.01 = 7,874.85 : x
  2. Step 2: Convert to fraction form
    13,925.10/19,217.01 = 7,874.85/x
  3. Step 3: Cross multiply
    13,925.10x = 19,217.01 × 7,874.85
  4. Step 4: Simplify right side
    13,925.10x = 151,331,071.20
  5. Step 5: Solve for x
    x = 151,331,071.20/13,925.10
  6. Step 6: Final answer
    x = 10,867.50

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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.