Home / 16,581.12-22,889.40-10,918.80

Finding the Fourth Proportional to 16,581.12, 22,889.40 and 10,918.80

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Solution

The fourth proportional to 16,581.12, 22,889.40 and 10,918.80 is: 15,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,581.12 : 22,889.40 = 10,918.80 : x
  2. Step 2: Convert to fraction form
    16,581.12/22,889.40 = 10,918.80/x
  3. Step 3: Cross multiply
    16,581.12x = 22,889.40 × 10,918.80
  4. Step 4: Simplify right side
    16,581.12x = 249,924,780.72
  5. Step 5: Solve for x
    x = 249,924,780.72/16,581.12
  6. Step 6: Final answer
    x = 15,072.85

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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.