Home / 10,622.06-15,930.81-4,380.45

Finding the Fourth Proportional to 10,622.06, 15,930.81 and 4,380.45

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Solution

The fourth proportional to 10,622.06, 15,930.81 and 4,380.45 is: 6,569.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.06 : 15,930.81 = 4,380.45 : x
  2. Step 2: Convert to fraction form
    10,622.06/15,930.81 = 4,380.45/x
  3. Step 3: Cross multiply
    10,622.06x = 15,930.81 × 4,380.45
  4. Step 4: Simplify right side
    10,622.06x = 69,784,209.82
  5. Step 5: Solve for x
    x = 69,784,209.82/10,622.06
  6. Step 6: Final answer
    x = 6,569.74

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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.