Home / 11,903.20-16,426.02-7,186.66

Finding the Fourth Proportional to 11,903.20, 16,426.02 and 7,186.66

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Solution

The fourth proportional to 11,903.20, 16,426.02 and 7,186.66 is: 9,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.20 : 16,426.02 = 7,186.66 : x
  2. Step 2: Convert to fraction form
    11,903.20/16,426.02 = 7,186.66/x
  3. Step 3: Cross multiply
    11,903.20x = 16,426.02 × 7,186.66
  4. Step 4: Simplify right side
    11,903.20x = 118,048,206.78
  5. Step 5: Solve for x
    x = 118,048,206.78/11,903.20
  6. Step 6: Final answer
    x = 9,917.35

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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.