Home / 10,211.10-15,328.80-5,772.30

Finding the Fourth Proportional to 10,211.10, 15,328.80 and 5,772.30

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Solution

The fourth proportional to 10,211.10, 15,328.80 and 5,772.30 is: 8,665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.10 : 15,328.80 = 5,772.30 : x
  2. Step 2: Convert to fraction form
    10,211.10/15,328.80 = 5,772.30/x
  3. Step 3: Cross multiply
    10,211.10x = 15,328.80 × 5,772.30
  4. Step 4: Simplify right side
    10,211.10x = 88,482,432.24
  5. Step 5: Solve for x
    x = 88,482,432.24/10,211.10
  6. Step 6: Final answer
    x = 8,665.32

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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.