Home / 15,851.04-21,874.44-9,882.70

Finding the Fourth Proportional to 15,851.04, 21,874.44 and 9,882.70

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Solution

The fourth proportional to 15,851.04, 21,874.44 and 9,882.70 is: 13,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,851.04 : 21,874.44 = 9,882.70 : x
  2. Step 2: Convert to fraction form
    15,851.04/21,874.44 = 9,882.70/x
  3. Step 3: Cross multiply
    15,851.04x = 21,874.44 × 9,882.70
  4. Step 4: Simplify right side
    15,851.04x = 216,178,528.19
  5. Step 5: Solve for x
    x = 216,178,528.19/15,851.04
  6. Step 6: Final answer
    x = 13,638.13

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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.