Home / 13,867.57-19,135.01-7,899.35

Finding the Fourth Proportional to 13,867.57, 19,135.01 and 7,899.35

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Solution

The fourth proportional to 13,867.57, 19,135.01 and 7,899.35 is: 10,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.57 : 19,135.01 = 7,899.35 : x
  2. Step 2: Convert to fraction form
    13,867.57/19,135.01 = 7,899.35/x
  3. Step 3: Cross multiply
    13,867.57x = 19,135.01 × 7,899.35
  4. Step 4: Simplify right side
    13,867.57x = 151,154,101.75
  5. Step 5: Solve for x
    x = 151,154,101.75/13,867.57
  6. Step 6: Final answer
    x = 10,899.83

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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.