Home / 9,315.36-13,963.68-5,157.18

Finding the Fourth Proportional to 9,315.36, 13,963.68 and 5,157.18

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Solution

The fourth proportional to 9,315.36, 13,963.68 and 5,157.18 is: 7,730.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.36 : 13,963.68 = 5,157.18 : x
  2. Step 2: Convert to fraction form
    9,315.36/13,963.68 = 5,157.18/x
  3. Step 3: Cross multiply
    9,315.36x = 13,963.68 × 5,157.18
  4. Step 4: Simplify right side
    9,315.36x = 72,013,211.22
  5. Step 5: Solve for x
    x = 72,013,211.22/9,315.36
  6. Step 6: Final answer
    x = 7,730.59

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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.