Home / 14,387.90-19,855.23-8,100.32

Finding the Fourth Proportional to 14,387.90, 19,855.23 and 8,100.32

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Solution

The fourth proportional to 14,387.90, 19,855.23 and 8,100.32 is: 11,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.90 : 19,855.23 = 8,100.32 : x
  2. Step 2: Convert to fraction form
    14,387.90/19,855.23 = 8,100.32/x
  3. Step 3: Cross multiply
    14,387.90x = 19,855.23 × 8,100.32
  4. Step 4: Simplify right side
    14,387.90x = 160,833,716.67
  5. Step 5: Solve for x
    x = 160,833,716.67/14,387.90
  6. Step 6: Final answer
    x = 11,178.40

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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.