Home / 11,088.50-15,302.12-7,109.60

Finding the Fourth Proportional to 11,088.50, 15,302.12 and 7,109.60

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Solution

The fourth proportional to 11,088.50, 15,302.12 and 7,109.60 is: 9,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,088.50 : 15,302.12 = 7,109.60 : x
  2. Step 2: Convert to fraction form
    11,088.50/15,302.12 = 7,109.60/x
  3. Step 3: Cross multiply
    11,088.50x = 15,302.12 × 7,109.60
  4. Step 4: Simplify right side
    11,088.50x = 108,791,952.35
  5. Step 5: Solve for x
    x = 108,791,952.35/11,088.50
  6. Step 6: Final answer
    x = 9,811.24

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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.