Home / 11,503.37-15,881.90-7,531.19

Finding the Fourth Proportional to 11,503.37, 15,881.90 and 7,531.19

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Solution

The fourth proportional to 11,503.37, 15,881.90 and 7,531.19 is: 10,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.37 : 15,881.90 = 7,531.19 : x
  2. Step 2: Convert to fraction form
    11,503.37/15,881.90 = 7,531.19/x
  3. Step 3: Cross multiply
    11,503.37x = 15,881.90 × 7,531.19
  4. Step 4: Simplify right side
    11,503.37x = 119,609,489.40
  5. Step 5: Solve for x
    x = 119,609,489.40/11,503.37
  6. Step 6: Final answer
    x = 10,397.78

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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.