Home / 13,243.07-18,274.54-7,274.99

Finding the Fourth Proportional to 13,243.07, 18,274.54 and 7,274.99

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Solution

The fourth proportional to 13,243.07, 18,274.54 and 7,274.99 is: 10,038.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.07 : 18,274.54 = 7,274.99 : x
  2. Step 2: Convert to fraction form
    13,243.07/18,274.54 = 7,274.99/x
  3. Step 3: Cross multiply
    13,243.07x = 18,274.54 × 7,274.99
  4. Step 4: Simplify right side
    13,243.07x = 132,947,095.75
  5. Step 5: Solve for x
    x = 132,947,095.75/13,243.07
  6. Step 6: Final answer
    x = 10,038.99

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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.