Home / 8,307.78-11,465.42-4,772.13

Finding the Fourth Proportional to 8,307.78, 11,465.42 and 4,772.13

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Solution

The fourth proportional to 8,307.78, 11,465.42 and 4,772.13 is: 6,585.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.78 : 11,465.42 = 4,772.13 : x
  2. Step 2: Convert to fraction form
    8,307.78/11,465.42 = 4,772.13/x
  3. Step 3: Cross multiply
    8,307.78x = 11,465.42 × 4,772.13
  4. Step 4: Simplify right side
    8,307.78x = 54,714,474.74
  5. Step 5: Solve for x
    x = 54,714,474.74/8,307.78
  6. Step 6: Final answer
    x = 6,585.93

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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.