Home / 14,169.79-21,248.48-5,398.55

Finding the Fourth Proportional to 14,169.79, 21,248.48 and 5,398.55

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Solution

The fourth proportional to 14,169.79, 21,248.48 and 5,398.55 is: 8,095.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.79 : 21,248.48 = 5,398.55 : x
  2. Step 2: Convert to fraction form
    14,169.79/21,248.48 = 5,398.55/x
  3. Step 3: Cross multiply
    14,169.79x = 21,248.48 × 5,398.55
  4. Step 4: Simplify right side
    14,169.79x = 114,710,938.27
  5. Step 5: Solve for x
    x = 114,710,938.27/14,169.79
  6. Step 6: Final answer
    x = 8,095.46

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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.