Home / 12,667.55-19,001.72-4,347.45

Finding the Fourth Proportional to 12,667.55, 19,001.72 and 4,347.45

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Solution

The fourth proportional to 12,667.55, 19,001.72 and 4,347.45 is: 6,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,667.55 : 19,001.72 = 4,347.45 : x
  2. Step 2: Convert to fraction form
    12,667.55/19,001.72 = 4,347.45/x
  3. Step 3: Cross multiply
    12,667.55x = 19,001.72 × 4,347.45
  4. Step 4: Simplify right side
    12,667.55x = 82,609,027.61
  5. Step 5: Solve for x
    x = 82,609,027.61/12,667.55
  6. Step 6: Final answer
    x = 6,521.31

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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.