Home / 11,040.16-16,521.36-8,422.24

Finding the Fourth Proportional to 11,040.16, 16,521.36 and 8,422.24

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Solution

The fourth proportional to 11,040.16, 16,521.36 and 8,422.24 is: 12,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.16 : 16,521.36 = 8,422.24 : x
  2. Step 2: Convert to fraction form
    11,040.16/16,521.36 = 8,422.24/x
  3. Step 3: Cross multiply
    11,040.16x = 16,521.36 × 8,422.24
  4. Step 4: Simplify right side
    11,040.16x = 139,146,859.05
  5. Step 5: Solve for x
    x = 139,146,859.05/11,040.16
  6. Step 6: Final answer
    x = 12,603.70

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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.