Home / 15,515.66-23,274.30-7,721.84

Finding the Fourth Proportional to 15,515.66, 23,274.30 and 7,721.84

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Solution

The fourth proportional to 15,515.66, 23,274.30 and 7,721.84 is: 11,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.66 : 23,274.30 = 7,721.84 : x
  2. Step 2: Convert to fraction form
    15,515.66/23,274.30 = 7,721.84/x
  3. Step 3: Cross multiply
    15,515.66x = 23,274.30 × 7,721.84
  4. Step 4: Simplify right side
    15,515.66x = 179,720,420.71
  5. Step 5: Solve for x
    x = 179,720,420.71/15,515.66
  6. Step 6: Final answer
    x = 11,583.16

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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.