Home / 11,340.52-15,645.90-7,088.68

Finding the Fourth Proportional to 11,340.52, 15,645.90 and 7,088.68

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Solution

The fourth proportional to 11,340.52, 15,645.90 and 7,088.68 is: 9,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.52 : 15,645.90 = 7,088.68 : x
  2. Step 2: Convert to fraction form
    11,340.52/15,645.90 = 7,088.68/x
  3. Step 3: Cross multiply
    11,340.52x = 15,645.90 × 7,088.68
  4. Step 4: Simplify right side
    11,340.52x = 110,908,778.41
  5. Step 5: Solve for x
    x = 110,908,778.41/11,340.52
  6. Step 6: Final answer
    x = 9,779.87

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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.