Home / 13,240.70-18,272.48-7,191.18

Finding the Fourth Proportional to 13,240.70, 18,272.48 and 7,191.18

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Solution

The fourth proportional to 13,240.70, 18,272.48 and 7,191.18 is: 9,924.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.70 : 18,272.48 = 7,191.18 : x
  2. Step 2: Convert to fraction form
    13,240.70/18,272.48 = 7,191.18/x
  3. Step 3: Cross multiply
    13,240.70x = 18,272.48 × 7,191.18
  4. Step 4: Simplify right side
    13,240.70x = 131,400,656.77
  5. Step 5: Solve for x
    x = 131,400,656.77/13,240.70
  6. Step 6: Final answer
    x = 9,924.00

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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.