Home / 11,319.60-16,888.56-10,072.20

Finding the Fourth Proportional to 11,319.60, 16,888.56 and 10,072.20

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Solution

The fourth proportional to 11,319.60, 16,888.56 and 10,072.20 is: 15,027.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.60 : 16,888.56 = 10,072.20 : x
  2. Step 2: Convert to fraction form
    11,319.60/16,888.56 = 10,072.20/x
  3. Step 3: Cross multiply
    11,319.60x = 16,888.56 × 10,072.20
  4. Step 4: Simplify right side
    11,319.60x = 170,104,954.03
  5. Step 5: Solve for x
    x = 170,104,954.03/11,319.60
  6. Step 6: Final answer
    x = 15,027.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.