Home / 14,020.48-21,000.55-6,613.84

Finding the Fourth Proportional to 14,020.48, 21,000.55 and 6,613.84

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Solution

The fourth proportional to 14,020.48, 21,000.55 and 6,613.84 is: 9,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.48 : 21,000.55 = 6,613.84 : x
  2. Step 2: Convert to fraction form
    14,020.48/21,000.55 = 6,613.84/x
  3. Step 3: Cross multiply
    14,020.48x = 21,000.55 × 6,613.84
  4. Step 4: Simplify right side
    14,020.48x = 138,894,277.61
  5. Step 5: Solve for x
    x = 138,894,277.61/14,020.48
  6. Step 6: Final answer
    x = 9,906.53

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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.