Home / 12,409.60-18,526.24-11,891.20

Finding the Fourth Proportional to 12,409.60, 18,526.24 and 11,891.20

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Solution

The fourth proportional to 12,409.60, 18,526.24 and 11,891.20 is: 17,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.60 : 18,526.24 = 11,891.20 : x
  2. Step 2: Convert to fraction form
    12,409.60/18,526.24 = 11,891.20/x
  3. Step 3: Cross multiply
    12,409.60x = 18,526.24 × 11,891.20
  4. Step 4: Simplify right side
    12,409.60x = 220,299,225.09
  5. Step 5: Solve for x
    x = 220,299,225.09/12,409.60
  6. Step 6: Final answer
    x = 17,752.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.