Home / 14,089.72-19,442.16-8,121.32

Finding the Fourth Proportional to 14,089.72, 19,442.16 and 8,121.32

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Solution

The fourth proportional to 14,089.72, 19,442.16 and 8,121.32 is: 11,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.72 : 19,442.16 = 8,121.32 : x
  2. Step 2: Convert to fraction form
    14,089.72/19,442.16 = 8,121.32/x
  3. Step 3: Cross multiply
    14,089.72x = 19,442.16 × 8,121.32
  4. Step 4: Simplify right side
    14,089.72x = 157,896,002.85
  5. Step 5: Solve for x
    x = 157,896,002.85/14,089.72
  6. Step 6: Final answer
    x = 11,206.47

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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.