Home / 7,718.12-10,643.63-4,693.75

Finding the Fourth Proportional to 7,718.12, 10,643.63 and 4,693.75

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Solution

The fourth proportional to 7,718.12, 10,643.63 and 4,693.75 is: 6,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.12 : 10,643.63 = 4,693.75 : x
  2. Step 2: Convert to fraction form
    7,718.12/10,643.63 = 4,693.75/x
  3. Step 3: Cross multiply
    7,718.12x = 10,643.63 × 4,693.75
  4. Step 4: Simplify right side
    7,718.12x = 49,958,488.23
  5. Step 5: Solve for x
    x = 49,958,488.23/7,718.12
  6. Step 6: Final answer
    x = 6,472.88

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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.