Home / 7,485.66-11,215.71-5,290.14

Finding the Fourth Proportional to 7,485.66, 11,215.71 and 5,290.14

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Solution

The fourth proportional to 7,485.66, 11,215.71 and 5,290.14 is: 7,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.66 : 11,215.71 = 5,290.14 : x
  2. Step 2: Convert to fraction form
    7,485.66/11,215.71 = 5,290.14/x
  3. Step 3: Cross multiply
    7,485.66x = 11,215.71 × 5,290.14
  4. Step 4: Simplify right side
    7,485.66x = 59,332,676.10
  5. Step 5: Solve for x
    x = 59,332,676.10/7,485.66
  6. Step 6: Final answer
    x = 7,926.18

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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.