Home / 8,528.93-12,785.60-7,221.11

Finding the Fourth Proportional to 8,528.93, 12,785.60 and 7,221.11

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Solution

The fourth proportional to 8,528.93, 12,785.60 and 7,221.11 is: 10,825.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.93 : 12,785.60 = 7,221.11 : x
  2. Step 2: Convert to fraction form
    8,528.93/12,785.60 = 7,221.11/x
  3. Step 3: Cross multiply
    8,528.93x = 12,785.60 × 7,221.11
  4. Step 4: Simplify right side
    8,528.93x = 92,326,224.02
  5. Step 5: Solve for x
    x = 92,326,224.02/8,528.93
  6. Step 6: Final answer
    x = 10,825.07

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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.