Home / 13,360.21-18,437.27-8,326.46

Finding the Fourth Proportional to 13,360.21, 18,437.27 and 8,326.46

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Solution

The fourth proportional to 13,360.21, 18,437.27 and 8,326.46 is: 11,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.21 : 18,437.27 = 8,326.46 : x
  2. Step 2: Convert to fraction form
    13,360.21/18,437.27 = 8,326.46/x
  3. Step 3: Cross multiply
    13,360.21x = 18,437.27 × 8,326.46
  4. Step 4: Simplify right side
    13,360.21x = 153,517,191.16
  5. Step 5: Solve for x
    x = 153,517,191.16/13,360.21
  6. Step 6: Final answer
    x = 11,490.63

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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.