Home / 11,739.95-16,222.61-8,547.71

Finding the Fourth Proportional to 11,739.95, 16,222.61 and 8,547.71

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Solution

The fourth proportional to 11,739.95, 16,222.61 and 8,547.71 is: 11,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.95 : 16,222.61 = 8,547.71 : x
  2. Step 2: Convert to fraction form
    11,739.95/16,222.61 = 8,547.71/x
  3. Step 3: Cross multiply
    11,739.95x = 16,222.61 × 8,547.71
  4. Step 4: Simplify right side
    11,739.95x = 138,666,105.98
  5. Step 5: Solve for x
    x = 138,666,105.98/11,739.95
  6. Step 6: Final answer
    x = 11,811.47

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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.