Home / 9,728.16-13,421.75-5,750.61

Finding the Fourth Proportional to 9,728.16, 13,421.75 and 5,750.61

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Solution

The fourth proportional to 9,728.16, 13,421.75 and 5,750.61 is: 7,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728.16 : 13,421.75 = 5,750.61 : x
  2. Step 2: Convert to fraction form
    9,728.16/13,421.75 = 5,750.61/x
  3. Step 3: Cross multiply
    9,728.16x = 13,421.75 × 5,750.61
  4. Step 4: Simplify right side
    9,728.16x = 77,183,221.01
  5. Step 5: Solve for x
    x = 77,183,221.01/9,728.16
  6. Step 6: Final answer
    x = 7,934.00

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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.