Home / 9,403.36-12,976.18-5,628.61

Finding the Fourth Proportional to 9,403.36, 12,976.18 and 5,628.61

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Solution

The fourth proportional to 9,403.36, 12,976.18 and 5,628.61 is: 7,767.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.36 : 12,976.18 = 5,628.61 : x
  2. Step 2: Convert to fraction form
    9,403.36/12,976.18 = 5,628.61/x
  3. Step 3: Cross multiply
    9,403.36x = 12,976.18 × 5,628.61
  4. Step 4: Simplify right side
    9,403.36x = 73,037,838.14
  5. Step 5: Solve for x
    x = 73,037,838.14/9,403.36
  6. Step 6: Final answer
    x = 7,767.21

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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.