Home / 14,267.56-19,690.14-7,980.40

Finding the Fourth Proportional to 14,267.56, 19,690.14 and 7,980.40

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Solution

The fourth proportional to 14,267.56, 19,690.14 and 7,980.40 is: 11,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,267.56 : 19,690.14 = 7,980.40 : x
  2. Step 2: Convert to fraction form
    14,267.56/19,690.14 = 7,980.40/x
  3. Step 3: Cross multiply
    14,267.56x = 19,690.14 × 7,980.40
  4. Step 4: Simplify right side
    14,267.56x = 157,135,193.26
  5. Step 5: Solve for x
    x = 157,135,193.26/14,267.56
  6. Step 6: Final answer
    x = 11,013.46

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Similar ratio
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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.