Home / 14,407.04-19,881.45-8,119.42

Finding the Fourth Proportional to 14,407.04, 19,881.45 and 8,119.42

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Solution

The fourth proportional to 14,407.04, 19,881.45 and 8,119.42 is: 11,204.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,407.04 : 19,881.45 = 8,119.42 : x
  2. Step 2: Convert to fraction form
    14,407.04/19,881.45 = 8,119.42/x
  3. Step 3: Cross multiply
    14,407.04x = 19,881.45 × 8,119.42
  4. Step 4: Simplify right side
    14,407.04x = 161,425,842.76
  5. Step 5: Solve for x
    x = 161,425,842.76/14,407.04
  6. Step 6: Final answer
    x = 11,204.65

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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.