Home / 6,823.46-9,412.93-3,988.98

Finding the Fourth Proportional to 6,823.46, 9,412.93 and 3,988.98

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Solution

The fourth proportional to 6,823.46, 9,412.93 and 3,988.98 is: 5,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,823.46 : 9,412.93 = 3,988.98 : x
  2. Step 2: Convert to fraction form
    6,823.46/9,412.93 = 3,988.98/x
  3. Step 3: Cross multiply
    6,823.46x = 9,412.93 × 3,988.98
  4. Step 4: Simplify right side
    6,823.46x = 37,547,969.57
  5. Step 5: Solve for x
    x = 37,547,969.57/6,823.46
  6. Step 6: Final answer
    x = 5,502.78

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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.