Home / 8,220.24-11,345.08-4,683.76

Finding the Fourth Proportional to 8,220.24, 11,345.08 and 4,683.76

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Solution

The fourth proportional to 8,220.24, 11,345.08 and 4,683.76 is: 6,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.24 : 11,345.08 = 4,683.76 : x
  2. Step 2: Convert to fraction form
    8,220.24/11,345.08 = 4,683.76/x
  3. Step 3: Cross multiply
    8,220.24x = 11,345.08 × 4,683.76
  4. Step 4: Simplify right side
    8,220.24x = 53,137,631.90
  5. Step 5: Solve for x
    x = 53,137,631.90/8,220.24
  6. Step 6: Final answer
    x = 6,464.24

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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.