Home / 15,073.39-20,811.59-9,416.76

Finding the Fourth Proportional to 15,073.39, 20,811.59 and 9,416.76

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Solution

The fourth proportional to 15,073.39, 20,811.59 and 9,416.76 is: 13,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.39 : 20,811.59 = 9,416.76 : x
  2. Step 2: Convert to fraction form
    15,073.39/20,811.59 = 9,416.76/x
  3. Step 3: Cross multiply
    15,073.39x = 20,811.59 × 9,416.76
  4. Step 4: Simplify right side
    15,073.39x = 195,977,748.25
  5. Step 5: Solve for x
    x = 195,977,748.25/15,073.39
  6. Step 6: Final answer
    x = 13,001.57

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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.