Home / 15,990.12-22,068.45-11,528.64

Finding the Fourth Proportional to 15,990.12, 22,068.45 and 11,528.64

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Solution

The fourth proportional to 15,990.12, 22,068.45 and 11,528.64 is: 15,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.12 : 22,068.45 = 11,528.64 : x
  2. Step 2: Convert to fraction form
    15,990.12/22,068.45 = 11,528.64/x
  3. Step 3: Cross multiply
    15,990.12x = 22,068.45 × 11,528.64
  4. Step 4: Simplify right side
    15,990.12x = 254,419,215.41
  5. Step 5: Solve for x
    x = 254,419,215.41/15,990.12
  6. Step 6: Final answer
    x = 15,911.03

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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.