Home / 7,867.95-10,853.10-6,186.66

Finding the Fourth Proportional to 7,867.95, 10,853.10 and 6,186.66

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Solution

The fourth proportional to 7,867.95, 10,853.10 and 6,186.66 is: 8,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.95 : 10,853.10 = 6,186.66 : x
  2. Step 2: Convert to fraction form
    7,867.95/10,853.10 = 6,186.66/x
  3. Step 3: Cross multiply
    7,867.95x = 10,853.10 × 6,186.66
  4. Step 4: Simplify right side
    7,867.95x = 67,144,439.65
  5. Step 5: Solve for x
    x = 67,144,439.65/7,867.95
  6. Step 6: Final answer
    x = 8,533.92

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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.