Home / 19,316.10-28,968.57-8,780.25

Finding the Fourth Proportional to 19,316.10, 28,968.57 and 8,780.25

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Solution

The fourth proportional to 19,316.10, 28,968.57 and 8,780.25 is: 13,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.10 : 28,968.57 = 8,780.25 : x
  2. Step 2: Convert to fraction form
    19,316.10/28,968.57 = 8,780.25/x
  3. Step 3: Cross multiply
    19,316.10x = 28,968.57 × 8,780.25
  4. Step 4: Simplify right side
    19,316.10x = 254,351,286.74
  5. Step 5: Solve for x
    x = 254,351,286.74/19,316.10
  6. Step 6: Final answer
    x = 13,167.84

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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.