Home / 8,812.42-13,219.85-2,970.70

Finding the Fourth Proportional to 8,812.42, 13,219.85 and 2,970.70

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Solution

The fourth proportional to 8,812.42, 13,219.85 and 2,970.70 is: 4,456.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.42 : 13,219.85 = 2,970.70 : x
  2. Step 2: Convert to fraction form
    8,812.42/13,219.85 = 2,970.70/x
  3. Step 3: Cross multiply
    8,812.42x = 13,219.85 × 2,970.70
  4. Step 4: Simplify right side
    8,812.42x = 39,272,208.40
  5. Step 5: Solve for x
    x = 39,272,208.40/8,812.42
  6. Step 6: Final answer
    x = 4,456.46

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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.