Home / 14,780.47-20,396.96-8,065.96

Finding the Fourth Proportional to 14,780.47, 20,396.96 and 8,065.96

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Solution

The fourth proportional to 14,780.47, 20,396.96 and 8,065.96 is: 11,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.47 : 20,396.96 = 8,065.96 : x
  2. Step 2: Convert to fraction form
    14,780.47/20,396.96 = 8,065.96/x
  3. Step 3: Cross multiply
    14,780.47x = 20,396.96 × 8,065.96
  4. Step 4: Simplify right side
    14,780.47x = 164,521,023.15
  5. Step 5: Solve for x
    x = 164,521,023.15/14,780.47
  6. Step 6: Final answer
    x = 11,130.97

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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.