Home / 14,254.20-19,643.58-12,387.96

Finding the Fourth Proportional to 14,254.20, 19,643.58 and 12,387.96

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Solution

The fourth proportional to 14,254.20, 19,643.58 and 12,387.96 is: 17,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.20 : 19,643.58 = 12,387.96 : x
  2. Step 2: Convert to fraction form
    14,254.20/19,643.58 = 12,387.96/x
  3. Step 3: Cross multiply
    14,254.20x = 19,643.58 × 12,387.96
  4. Step 4: Simplify right side
    14,254.20x = 243,343,883.30
  5. Step 5: Solve for x
    x = 243,343,883.30/14,254.20
  6. Step 6: Final answer
    x = 17,071.73

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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.