Home / 14,277.69-19,703.66-7,990.20

Finding the Fourth Proportional to 14,277.69, 19,703.66 and 7,990.20

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Solution

The fourth proportional to 14,277.69, 19,703.66 and 7,990.20 is: 11,026.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,277.69 : 19,703.66 = 7,990.20 : x
  2. Step 2: Convert to fraction form
    14,277.69/19,703.66 = 7,990.20/x
  3. Step 3: Cross multiply
    14,277.69x = 19,703.66 × 7,990.20
  4. Step 4: Simplify right side
    14,277.69x = 157,436,144.18
  5. Step 5: Solve for x
    x = 157,436,144.18/14,277.69
  6. Step 6: Final answer
    x = 11,026.72

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Double scale
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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.