Home / 15,957.36-22,021.16-8,885.45

Finding the Fourth Proportional to 15,957.36, 22,021.16 and 8,885.45

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Solution

The fourth proportional to 15,957.36, 22,021.16 and 8,885.45 is: 12,261.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.36 : 22,021.16 = 8,885.45 : x
  2. Step 2: Convert to fraction form
    15,957.36/22,021.16 = 8,885.45/x
  3. Step 3: Cross multiply
    15,957.36x = 22,021.16 × 8,885.45
  4. Step 4: Simplify right side
    15,957.36x = 195,667,926.75
  5. Step 5: Solve for x
    x = 195,667,926.75/15,957.36
  6. Step 6: Final answer
    x = 12,261.92

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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.