Home / 19,461.60-26,852.40-11,080.80

Finding the Fourth Proportional to 19,461.60, 26,852.40 and 11,080.80

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Solution

The fourth proportional to 19,461.60, 26,852.40 and 11,080.80 is: 15,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.60 : 26,852.40 = 11,080.80 : x
  2. Step 2: Convert to fraction form
    19,461.60/26,852.40 = 11,080.80/x
  3. Step 3: Cross multiply
    19,461.60x = 26,852.40 × 11,080.80
  4. Step 4: Simplify right side
    19,461.60x = 297,546,073.92
  5. Step 5: Solve for x
    x = 297,546,073.92/19,461.60
  6. Step 6: Final answer
    x = 15,288.88

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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.