Home / 9,327.80-12,870.18-6,811.26

Finding the Fourth Proportional to 9,327.80, 12,870.18 and 6,811.26

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Solution

The fourth proportional to 9,327.80, 12,870.18 and 6,811.26 is: 9,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.80 : 12,870.18 = 6,811.26 : x
  2. Step 2: Convert to fraction form
    9,327.80/12,870.18 = 6,811.26/x
  3. Step 3: Cross multiply
    9,327.80x = 12,870.18 × 6,811.26
  4. Step 4: Simplify right side
    9,327.80x = 87,662,142.23
  5. Step 5: Solve for x
    x = 87,662,142.23/9,327.80
  6. Step 6: Final answer
    x = 9,397.95

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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.