Home / 11,703.87-16,151.13-6,398.64

Finding the Fourth Proportional to 11,703.87, 16,151.13 and 6,398.64

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Solution

The fourth proportional to 11,703.87, 16,151.13 and 6,398.64 is: 8,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.87 : 16,151.13 = 6,398.64 : x
  2. Step 2: Convert to fraction form
    11,703.87/16,151.13 = 6,398.64/x
  3. Step 3: Cross multiply
    11,703.87x = 16,151.13 × 6,398.64
  4. Step 4: Simplify right side
    11,703.87x = 103,345,266.46
  5. Step 5: Solve for x
    x = 103,345,266.46/11,703.87
  6. Step 6: Final answer
    x = 8,830.01

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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.