Home / 14,257.82-19,675.85-7,970.20

Finding the Fourth Proportional to 14,257.82, 19,675.85 and 7,970.20

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Solution

The fourth proportional to 14,257.82, 19,675.85 and 7,970.20 is: 10,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,257.82 : 19,675.85 = 7,970.20 : x
  2. Step 2: Convert to fraction form
    14,257.82/19,675.85 = 7,970.20/x
  3. Step 3: Cross multiply
    14,257.82x = 19,675.85 × 7,970.20
  4. Step 4: Simplify right side
    14,257.82x = 156,820,370.63
  5. Step 5: Solve for x
    x = 156,820,370.63/14,257.82
  6. Step 6: Final answer
    x = 10,998.90

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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.