Home / 11,728.61-16,186.58-6,424.23

Finding the Fourth Proportional to 11,728.61, 16,186.58 and 6,424.23

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Solution

The fourth proportional to 11,728.61, 16,186.58 and 6,424.23 is: 8,866.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.61 : 16,186.58 = 6,424.23 : x
  2. Step 2: Convert to fraction form
    11,728.61/16,186.58 = 6,424.23/x
  3. Step 3: Cross multiply
    11,728.61x = 16,186.58 × 6,424.23
  4. Step 4: Simplify right side
    11,728.61x = 103,986,312.83
  5. Step 5: Solve for x
    x = 103,986,312.83/11,728.61
  6. Step 6: Final answer
    x = 8,866.04

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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.