Home / 9,620.94-13,276.95-5,642.13

Finding the Fourth Proportional to 9,620.94, 13,276.95 and 5,642.13

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Solution

The fourth proportional to 9,620.94, 13,276.95 and 5,642.13 is: 7,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.94 : 13,276.95 = 5,642.13 : x
  2. Step 2: Convert to fraction form
    9,620.94/13,276.95 = 5,642.13/x
  3. Step 3: Cross multiply
    9,620.94x = 13,276.95 × 5,642.13
  4. Step 4: Simplify right side
    9,620.94x = 74,910,277.90
  5. Step 5: Solve for x
    x = 74,910,277.90/9,620.94
  6. Step 6: Final answer
    x = 7,786.17

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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.