Home / 15,386.41-21,247.24-11,603.10

Finding the Fourth Proportional to 15,386.41, 21,247.24 and 11,603.10

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Solution

The fourth proportional to 15,386.41, 21,247.24 and 11,603.10 is: 16,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.41 : 21,247.24 = 11,603.10 : x
  2. Step 2: Convert to fraction form
    15,386.41/21,247.24 = 11,603.10/x
  3. Step 3: Cross multiply
    15,386.41x = 21,247.24 × 11,603.10
  4. Step 4: Simplify right side
    15,386.41x = 246,533,770.72
  5. Step 5: Solve for x
    x = 246,533,770.72/15,386.41
  6. Step 6: Final answer
    x = 16,022.83

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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.