Home / 7,915.56-10,932.12-5,274.18

Finding the Fourth Proportional to 7,915.56, 10,932.12 and 5,274.18

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Solution

The fourth proportional to 7,915.56, 10,932.12 and 5,274.18 is: 7,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.56 : 10,932.12 = 5,274.18 : x
  2. Step 2: Convert to fraction form
    7,915.56/10,932.12 = 5,274.18/x
  3. Step 3: Cross multiply
    7,915.56x = 10,932.12 × 5,274.18
  4. Step 4: Simplify right side
    7,915.56x = 57,657,968.66
  5. Step 5: Solve for x
    x = 57,657,968.66/7,915.56
  6. Step 6: Final answer
    x = 7,284.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.