Home / 11,088.96-15,305.40-7,119.48

Finding the Fourth Proportional to 11,088.96, 15,305.40 and 7,119.48

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Solution

The fourth proportional to 11,088.96, 15,305.40 and 7,119.48 is: 9,826.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,088.96 : 15,305.40 = 7,119.48 : x
  2. Step 2: Convert to fraction form
    11,088.96/15,305.40 = 7,119.48/x
  3. Step 3: Cross multiply
    11,088.96x = 15,305.40 × 7,119.48
  4. Step 4: Simplify right side
    11,088.96x = 108,966,489.19
  5. Step 5: Solve for x
    x = 108,966,489.19/11,088.96
  6. Step 6: Final answer
    x = 9,826.57

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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.