Home / 13,056.12-18,003.67-9,275.34

Finding the Fourth Proportional to 13,056.12, 18,003.67 and 9,275.34

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Solution

The fourth proportional to 13,056.12, 18,003.67 and 9,275.34 is: 12,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.12 : 18,003.67 = 9,275.34 : x
  2. Step 2: Convert to fraction form
    13,056.12/18,003.67 = 9,275.34/x
  3. Step 3: Cross multiply
    13,056.12x = 18,003.67 × 9,275.34
  4. Step 4: Simplify right side
    13,056.12x = 166,990,204.82
  5. Step 5: Solve for x
    x = 166,990,204.82/13,056.12
  6. Step 6: Final answer
    x = 12,790.19

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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.