Home / 9,312.24-12,850.88-5,120.49

Finding the Fourth Proportional to 9,312.24, 12,850.88 and 5,120.49

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Solution

The fourth proportional to 9,312.24, 12,850.88 and 5,120.49 is: 7,066.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.24 : 12,850.88 = 5,120.49 : x
  2. Step 2: Convert to fraction form
    9,312.24/12,850.88 = 5,120.49/x
  3. Step 3: Cross multiply
    9,312.24x = 12,850.88 × 5,120.49
  4. Step 4: Simplify right side
    9,312.24x = 65,802,802.53
  5. Step 5: Solve for x
    x = 65,802,802.53/9,312.24
  6. Step 6: Final answer
    x = 7,066.27

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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.