Home / 19,261.28-26,548.80-12,885.58

Finding the Fourth Proportional to 19,261.28, 26,548.80 and 12,885.58

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Solution

The fourth proportional to 19,261.28, 26,548.80 and 12,885.58 is: 17,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.28 : 26,548.80 = 12,885.58 : x
  2. Step 2: Convert to fraction form
    19,261.28/26,548.80 = 12,885.58/x
  3. Step 3: Cross multiply
    19,261.28x = 26,548.80 × 12,885.58
  4. Step 4: Simplify right side
    19,261.28x = 342,096,686.30
  5. Step 5: Solve for x
    x = 342,096,686.30/19,261.28
  6. Step 6: Final answer
    x = 17,760.85

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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.