Home / 18,443.50-27,638.66-10,521.60

Finding the Fourth Proportional to 18,443.50, 27,638.66 and 10,521.60

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Solution

The fourth proportional to 18,443.50, 27,638.66 and 10,521.60 is: 15,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.50 : 27,638.66 = 10,521.60 : x
  2. Step 2: Convert to fraction form
    18,443.50/27,638.66 = 10,521.60/x
  3. Step 3: Cross multiply
    18,443.50x = 27,638.66 × 10,521.60
  4. Step 4: Simplify right side
    18,443.50x = 290,802,925.06
  5. Step 5: Solve for x
    x = 290,802,925.06/18,443.50
  6. Step 6: Final answer
    x = 15,767.23

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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.