Home / 14,088.87-19,442.61-8,120.50

Finding the Fourth Proportional to 14,088.87, 19,442.61 and 8,120.50

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Solution

The fourth proportional to 14,088.87, 19,442.61 and 8,120.50 is: 11,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.87 : 19,442.61 = 8,120.50 : x
  2. Step 2: Convert to fraction form
    14,088.87/19,442.61 = 8,120.50/x
  3. Step 3: Cross multiply
    14,088.87x = 19,442.61 × 8,120.50
  4. Step 4: Simplify right side
    14,088.87x = 157,883,665.90
  5. Step 5: Solve for x
    x = 157,883,665.90/14,088.87
  6. Step 6: Final answer
    x = 11,206.27

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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.