Home / 19,389.85-29,080.66-8,856.88

Finding the Fourth Proportional to 19,389.85, 29,080.66 and 8,856.88

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Solution

The fourth proportional to 19,389.85, 29,080.66 and 8,856.88 is: 13,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.85 : 29,080.66 = 8,856.88 : x
  2. Step 2: Convert to fraction form
    19,389.85/29,080.66 = 8,856.88/x
  3. Step 3: Cross multiply
    19,389.85x = 29,080.66 × 8,856.88
  4. Step 4: Simplify right side
    19,389.85x = 257,563,915.94
  5. Step 5: Solve for x
    x = 257,563,915.94/19,389.85
  6. Step 6: Final answer
    x = 13,283.44

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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.