Home / 10,492.10-15,721.35-5,555.30

Finding the Fourth Proportional to 10,492.10, 15,721.35 and 5,555.30

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Solution

The fourth proportional to 10,492.10, 15,721.35 and 5,555.30 is: 8,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,492.10 : 15,721.35 = 5,555.30 : x
  2. Step 2: Convert to fraction form
    10,492.10/15,721.35 = 5,555.30/x
  3. Step 3: Cross multiply
    10,492.10x = 15,721.35 × 5,555.30
  4. Step 4: Simplify right side
    10,492.10x = 87,336,815.66
  5. Step 5: Solve for x
    x = 87,336,815.66/10,492.10
  6. Step 6: Final answer
    x = 8,324.05

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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.