Home / 14,205.60-21,308.40-11,581.20

Finding the Fourth Proportional to 14,205.60, 21,308.40 and 11,581.20

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Solution

The fourth proportional to 14,205.60, 21,308.40 and 11,581.20 is: 17,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.60 : 21,308.40 = 11,581.20 : x
  2. Step 2: Convert to fraction form
    14,205.60/21,308.40 = 11,581.20/x
  3. Step 3: Cross multiply
    14,205.60x = 21,308.40 × 11,581.20
  4. Step 4: Simplify right side
    14,205.60x = 246,776,842.08
  5. Step 5: Solve for x
    x = 246,776,842.08/14,205.60
  6. Step 6: Final answer
    x = 17,371.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.