Home / 15,954.31-22,017.48-8,784.77

Finding the Fourth Proportional to 15,954.31, 22,017.48 and 8,784.77

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Solution

The fourth proportional to 15,954.31, 22,017.48 and 8,784.77 is: 12,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.31 : 22,017.48 = 8,784.77 : x
  2. Step 2: Convert to fraction form
    15,954.31/22,017.48 = 8,784.77/x
  3. Step 3: Cross multiply
    15,954.31x = 22,017.48 × 8,784.77
  4. Step 4: Simplify right side
    15,954.31x = 193,418,497.78
  5. Step 5: Solve for x
    x = 193,418,497.78/15,954.31
  6. Step 6: Final answer
    x = 12,123.28

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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.