Home / 6,915.32-10,373.48-3,407.20

Finding the Fourth Proportional to 6,915.32, 10,373.48 and 3,407.20

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Solution

The fourth proportional to 6,915.32, 10,373.48 and 3,407.20 is: 5,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.32 : 10,373.48 = 3,407.20 : x
  2. Step 2: Convert to fraction form
    6,915.32/10,373.48 = 3,407.20/x
  3. Step 3: Cross multiply
    6,915.32x = 10,373.48 × 3,407.20
  4. Step 4: Simplify right side
    6,915.32x = 35,344,521.06
  5. Step 5: Solve for x
    x = 35,344,521.06/6,915.32
  6. Step 6: Final answer
    x = 5,111.05

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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.