Home / 8,705.28-12,012.12-5,559.24

Finding the Fourth Proportional to 8,705.28, 12,012.12 and 5,559.24

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Solution

The fourth proportional to 8,705.28, 12,012.12 and 5,559.24 is: 7,671.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.28 : 12,012.12 = 5,559.24 : x
  2. Step 2: Convert to fraction form
    8,705.28/12,012.12 = 5,559.24/x
  3. Step 3: Cross multiply
    8,705.28x = 12,012.12 × 5,559.24
  4. Step 4: Simplify right side
    8,705.28x = 66,778,257.99
  5. Step 5: Solve for x
    x = 66,778,257.99/8,705.28
  6. Step 6: Final answer
    x = 7,671.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.