Home / 15,778.98-23,668.65-4,685.40

Finding the Fourth Proportional to 15,778.98, 23,668.65 and 4,685.40

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Solution

The fourth proportional to 15,778.98, 23,668.65 and 4,685.40 is: 7,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778.98 : 23,668.65 = 4,685.40 : x
  2. Step 2: Convert to fraction form
    15,778.98/23,668.65 = 4,685.40/x
  3. Step 3: Cross multiply
    15,778.98x = 23,668.65 × 4,685.40
  4. Step 4: Simplify right side
    15,778.98x = 110,897,092.71
  5. Step 5: Solve for x
    x = 110,897,092.71/15,778.98
  6. Step 6: Final answer
    x = 7,028.15

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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.