Home / 6,915.57-10,373.36-1,721.45

Finding the Fourth Proportional to 6,915.57, 10,373.36 and 1,721.45

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Solution

The fourth proportional to 6,915.57, 10,373.36 and 1,721.45 is: 2,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.57 : 10,373.36 = 1,721.45 : x
  2. Step 2: Convert to fraction form
    6,915.57/10,373.36 = 1,721.45/x
  3. Step 3: Cross multiply
    6,915.57x = 10,373.36 × 1,721.45
  4. Step 4: Simplify right side
    6,915.57x = 17,857,160.10
  5. Step 5: Solve for x
    x = 17,857,160.10/6,915.57
  6. Step 6: Final answer
    x = 2,582.17

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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.