Home / 19,860.32-29,798.20-8,759.12

Finding the Fourth Proportional to 19,860.32, 29,798.20 and 8,759.12

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Solution

The fourth proportional to 19,860.32, 29,798.20 and 8,759.12 is: 13,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.32 : 29,798.20 = 8,759.12 : x
  2. Step 2: Convert to fraction form
    19,860.32/29,798.20 = 8,759.12/x
  3. Step 3: Cross multiply
    19,860.32x = 29,798.20 × 8,759.12
  4. Step 4: Simplify right side
    19,860.32x = 261,006,009.58
  5. Step 5: Solve for x
    x = 261,006,009.58/19,860.32
  6. Step 6: Final answer
    x = 13,142.08

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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.