Home / 16,878.79-25,334.08-8,564.78

Finding the Fourth Proportional to 16,878.79, 25,334.08 and 8,564.78

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Solution

The fourth proportional to 16,878.79, 25,334.08 and 8,564.78 is: 12,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.79 : 25,334.08 = 8,564.78 : x
  2. Step 2: Convert to fraction form
    16,878.79/25,334.08 = 8,564.78/x
  3. Step 3: Cross multiply
    16,878.79x = 25,334.08 × 8,564.78
  4. Step 4: Simplify right side
    16,878.79x = 216,980,652.21
  5. Step 5: Solve for x
    x = 216,980,652.21/16,878.79
  6. Step 6: Final answer
    x = 12,855.23

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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.