Home / 14,088.50-19,442.09-8,120.12

Finding the Fourth Proportional to 14,088.50, 19,442.09 and 8,120.12

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Solution

The fourth proportional to 14,088.50, 19,442.09 and 8,120.12 is: 11,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.50 : 19,442.09 = 8,120.12 : x
  2. Step 2: Convert to fraction form
    14,088.50/19,442.09 = 8,120.12/x
  3. Step 3: Cross multiply
    14,088.50x = 19,442.09 × 8,120.12
  4. Step 4: Simplify right side
    14,088.50x = 157,872,172.76
  5. Step 5: Solve for x
    x = 157,872,172.76/14,088.50
  6. Step 6: Final answer
    x = 11,205.75

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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.