Home / 11,289.29-15,577.25-7,039.04

Finding the Fourth Proportional to 11,289.29, 15,577.25 and 7,039.04

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Solution

The fourth proportional to 11,289.29, 15,577.25 and 7,039.04 is: 9,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.29 : 15,577.25 = 7,039.04 : x
  2. Step 2: Convert to fraction form
    11,289.29/15,577.25 = 7,039.04/x
  3. Step 3: Cross multiply
    11,289.29x = 15,577.25 × 7,039.04
  4. Step 4: Simplify right side
    11,289.29x = 109,648,772.76
  5. Step 5: Solve for x
    x = 109,648,772.76/11,289.29
  6. Step 6: Final answer
    x = 9,712.64

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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.