Home / 8,479.60-11,707.64-5,297.74

Finding the Fourth Proportional to 8,479.60, 11,707.64 and 5,297.74

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Solution

The fourth proportional to 8,479.60, 11,707.64 and 5,297.74 is: 7,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.60 : 11,707.64 = 5,297.74 : x
  2. Step 2: Convert to fraction form
    8,479.60/11,707.64 = 5,297.74/x
  3. Step 3: Cross multiply
    8,479.60x = 11,707.64 × 5,297.74
  4. Step 4: Simplify right side
    8,479.60x = 62,024,032.73
  5. Step 5: Solve for x
    x = 62,024,032.73/8,479.60
  6. Step 6: Final answer
    x = 7,314.50

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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.