Home / 7,842.29-10,811.88-6,718.41

Finding the Fourth Proportional to 7,842.29, 10,811.88 and 6,718.41

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Solution

The fourth proportional to 7,842.29, 10,811.88 and 6,718.41 is: 9,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.29 : 10,811.88 = 6,718.41 : x
  2. Step 2: Convert to fraction form
    7,842.29/10,811.88 = 6,718.41/x
  3. Step 3: Cross multiply
    7,842.29x = 10,811.88 × 6,718.41
  4. Step 4: Simplify right side
    7,842.29x = 72,638,642.71
  5. Step 5: Solve for x
    x = 72,638,642.71/7,842.29
  6. Step 6: Final answer
    x = 9,262.43

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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.