Home / 12,667.56-19,001.40-4,347.66

Finding the Fourth Proportional to 12,667.56, 19,001.40 and 4,347.66

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Solution

The fourth proportional to 12,667.56, 19,001.40 and 4,347.66 is: 6,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.56 : 19,001.40 = 4,347.66 : x
  2. Step 2: Convert to fraction form
    12,667.56/19,001.40 = 4,347.66/x
  3. Step 3: Cross multiply
    12,667.56x = 19,001.40 × 4,347.66
  4. Step 4: Simplify right side
    12,667.56x = 82,611,626.72
  5. Step 5: Solve for x
    x = 82,611,626.72/12,667.56
  6. Step 6: Final answer
    x = 6,521.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.