Home / 13,243.74-18,276.54-7,275.30

Finding the Fourth Proportional to 13,243.74, 18,276.54 and 7,275.30

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Solution

The fourth proportional to 13,243.74, 18,276.54 and 7,275.30 is: 10,040.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.74 : 18,276.54 = 7,275.30 : x
  2. Step 2: Convert to fraction form
    13,243.74/18,276.54 = 7,275.30/x
  3. Step 3: Cross multiply
    13,243.74x = 18,276.54 × 7,275.30
  4. Step 4: Simplify right side
    13,243.74x = 132,967,311.46
  5. Step 5: Solve for x
    x = 132,967,311.46/13,243.74
  6. Step 6: Final answer
    x = 10,040.01

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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.