Home / 9,340.25-12,900.70-6,818.31

Finding the Fourth Proportional to 9,340.25, 12,900.70 and 6,818.31

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Solution

The fourth proportional to 9,340.25, 12,900.70 and 6,818.31 is: 9,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.25 : 12,900.70 = 6,818.31 : x
  2. Step 2: Convert to fraction form
    9,340.25/12,900.70 = 6,818.31/x
  3. Step 3: Cross multiply
    9,340.25x = 12,900.70 × 6,818.31
  4. Step 4: Simplify right side
    9,340.25x = 87,960,980.34
  5. Step 5: Solve for x
    x = 87,960,980.34/9,340.25
  6. Step 6: Final answer
    x = 9,417.42

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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.