Home / 19,660.86-29,499.93-6,515.10

Finding the Fourth Proportional to 19,660.86, 29,499.93 and 6,515.10

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Solution

The fourth proportional to 19,660.86, 29,499.93 and 6,515.10 is: 9,775.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.86 : 29,499.93 = 6,515.10 : x
  2. Step 2: Convert to fraction form
    19,660.86/29,499.93 = 6,515.10/x
  3. Step 3: Cross multiply
    19,660.86x = 29,499.93 × 6,515.10
  4. Step 4: Simplify right side
    19,660.86x = 192,194,993.94
  5. Step 5: Solve for x
    x = 192,194,993.94/19,660.86
  6. Step 6: Final answer
    x = 9,775.51

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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.