Home / 19,617.48-29,409.63-8,515.77

Finding the Fourth Proportional to 19,617.48, 29,409.63 and 8,515.77

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Solution

The fourth proportional to 19,617.48, 29,409.63 and 8,515.77 is: 12,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.48 : 29,409.63 = 8,515.77 : x
  2. Step 2: Convert to fraction form
    19,617.48/29,409.63 = 8,515.77/x
  3. Step 3: Cross multiply
    19,617.48x = 29,409.63 × 8,515.77
  4. Step 4: Simplify right side
    19,617.48x = 250,445,644.87
  5. Step 5: Solve for x
    x = 250,445,644.87/19,617.48
  6. Step 6: Final answer
    x = 12,766.45

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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.