Home / 8,284.60-12,418.95-5,314.74

Finding the Fourth Proportional to 8,284.60, 12,418.95 and 5,314.74

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Solution

The fourth proportional to 8,284.60, 12,418.95 and 5,314.74 is: 7,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.60 : 12,418.95 = 5,314.74 : x
  2. Step 2: Convert to fraction form
    8,284.60/12,418.95 = 5,314.74/x
  3. Step 3: Cross multiply
    8,284.60x = 12,418.95 × 5,314.74
  4. Step 4: Simplify right side
    8,284.60x = 66,003,490.32
  5. Step 5: Solve for x
    x = 66,003,490.32/8,284.60
  6. Step 6: Final answer
    x = 7,967.01

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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.