Home / 9,222.52-12,730.89-6,984.40

Finding the Fourth Proportional to 9,222.52, 12,730.89 and 6,984.40

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Solution

The fourth proportional to 9,222.52, 12,730.89 and 6,984.40 is: 9,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,222.52 : 12,730.89 = 6,984.40 : x
  2. Step 2: Convert to fraction form
    9,222.52/12,730.89 = 6,984.40/x
  3. Step 3: Cross multiply
    9,222.52x = 12,730.89 × 6,984.40
  4. Step 4: Simplify right side
    9,222.52x = 88,917,628.12
  5. Step 5: Solve for x
    x = 88,917,628.12/9,222.52
  6. Step 6: Final answer
    x = 9,641.36

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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.