Home / 13,243.06-18,275.16-7,274.59

Finding the Fourth Proportional to 13,243.06, 18,275.16 and 7,274.59

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Solution

The fourth proportional to 13,243.06, 18,275.16 and 7,274.59 is: 10,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.06 : 18,275.16 = 7,274.59 : x
  2. Step 2: Convert to fraction form
    13,243.06/18,275.16 = 7,274.59/x
  3. Step 3: Cross multiply
    13,243.06x = 18,275.16 × 7,274.59
  4. Step 4: Simplify right side
    13,243.06x = 132,944,204.81
  5. Step 5: Solve for x
    x = 132,944,204.81/13,243.06
  6. Step 6: Final answer
    x = 10,038.79

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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.