Home / 12,443.36-18,665.01-10,247.45

Finding the Fourth Proportional to 12,443.36, 18,665.01 and 10,247.45

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Solution

The fourth proportional to 12,443.36, 18,665.01 and 10,247.45 is: 15,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.36 : 18,665.01 = 10,247.45 : x
  2. Step 2: Convert to fraction form
    12,443.36/18,665.01 = 10,247.45/x
  3. Step 3: Cross multiply
    12,443.36x = 18,665.01 × 10,247.45
  4. Step 4: Simplify right side
    12,443.36x = 191,268,803.39
  5. Step 5: Solve for x
    x = 191,268,803.39/12,443.36
  6. Step 6: Final answer
    x = 15,371.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.