Home / 11,600.40-16,010.28-9,709.20

Finding the Fourth Proportional to 11,600.40, 16,010.28 and 9,709.20

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Solution

The fourth proportional to 11,600.40, 16,010.28 and 9,709.20 is: 13,400.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,600.40 : 16,010.28 = 9,709.20 : x
  2. Step 2: Convert to fraction form
    11,600.40/16,010.28 = 9,709.20/x
  3. Step 3: Cross multiply
    11,600.40x = 16,010.28 × 9,709.20
  4. Step 4: Simplify right side
    11,600.40x = 155,447,010.58
  5. Step 5: Solve for x
    x = 155,447,010.58/11,600.40
  6. Step 6: Final answer
    x = 13,400.14

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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.