Home / 14,160.12-19,539.66-7,872.12

Finding the Fourth Proportional to 14,160.12, 19,539.66 and 7,872.12

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Solution

The fourth proportional to 14,160.12, 19,539.66 and 7,872.12 is: 10,862.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.12 : 19,539.66 = 7,872.12 : x
  2. Step 2: Convert to fraction form
    14,160.12/19,539.66 = 7,872.12/x
  3. Step 3: Cross multiply
    14,160.12x = 19,539.66 × 7,872.12
  4. Step 4: Simplify right side
    14,160.12x = 153,818,548.28
  5. Step 5: Solve for x
    x = 153,818,548.28/14,160.12
  6. Step 6: Final answer
    x = 10,862.80

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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.