Home / 13,080.18-18,052.29-8,362.74

Finding the Fourth Proportional to 13,080.18, 18,052.29 and 8,362.74

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Solution

The fourth proportional to 13,080.18, 18,052.29 and 8,362.74 is: 11,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.18 : 18,052.29 = 8,362.74 : x
  2. Step 2: Convert to fraction form
    13,080.18/18,052.29 = 8,362.74/x
  3. Step 3: Cross multiply
    13,080.18x = 18,052.29 × 8,362.74
  4. Step 4: Simplify right side
    13,080.18x = 150,966,607.67
  5. Step 5: Solve for x
    x = 150,966,607.67/13,080.18
  6. Step 6: Final answer
    x = 11,541.63

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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.