Home / 7,117.92-10,633.50-6,858.72

Finding the Fourth Proportional to 7,117.92, 10,633.50 and 6,858.72

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Solution

The fourth proportional to 7,117.92, 10,633.50 and 6,858.72 is: 10,246.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.92 : 10,633.50 = 6,858.72 : x
  2. Step 2: Convert to fraction form
    7,117.92/10,633.50 = 6,858.72/x
  3. Step 3: Cross multiply
    7,117.92x = 10,633.50 × 6,858.72
  4. Step 4: Simplify right side
    7,117.92x = 72,932,199.12
  5. Step 5: Solve for x
    x = 72,932,199.12/7,117.92
  6. Step 6: Final answer
    x = 10,246.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.