Home / 15,170.90-22,752.69-7,771.55

Finding the Fourth Proportional to 15,170.90, 22,752.69 and 7,771.55

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Solution

The fourth proportional to 15,170.90, 22,752.69 and 7,771.55 is: 11,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,170.90 : 22,752.69 = 7,771.55 : x
  2. Step 2: Convert to fraction form
    15,170.90/22,752.69 = 7,771.55/x
  3. Step 3: Cross multiply
    15,170.90x = 22,752.69 × 7,771.55
  4. Step 4: Simplify right side
    15,170.90x = 176,823,554.21
  5. Step 5: Solve for x
    x = 176,823,554.21/15,170.90
  6. Step 6: Final answer
    x = 11,655.45

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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.