Home / 15,825.63-21,839.29-8,752.06

Finding the Fourth Proportional to 15,825.63, 21,839.29 and 8,752.06

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Solution

The fourth proportional to 15,825.63, 21,839.29 and 8,752.06 is: 12,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,825.63 : 21,839.29 = 8,752.06 : x
  2. Step 2: Convert to fraction form
    15,825.63/21,839.29 = 8,752.06/x
  3. Step 3: Cross multiply
    15,825.63x = 21,839.29 × 8,752.06
  4. Step 4: Simplify right side
    15,825.63x = 191,138,776.44
  5. Step 5: Solve for x
    x = 191,138,776.44/15,825.63
  6. Step 6: Final answer
    x = 12,077.80

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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.