Home / 9,293.28-12,830.34-6,111.60

Finding the Fourth Proportional to 9,293.28, 12,830.34 and 6,111.60

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Solution

The fourth proportional to 9,293.28, 12,830.34 and 6,111.60 is: 8,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,293.28 : 12,830.34 = 6,111.60 : x
  2. Step 2: Convert to fraction form
    9,293.28/12,830.34 = 6,111.60/x
  3. Step 3: Cross multiply
    9,293.28x = 12,830.34 × 6,111.60
  4. Step 4: Simplify right side
    9,293.28x = 78,413,905.94
  5. Step 5: Solve for x
    x = 78,413,905.94/9,293.28
  6. Step 6: Final answer
    x = 8,437.70

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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.