Home / 7,818.18-10,788.90-4,281.18

Finding the Fourth Proportional to 7,818.18, 10,788.90 and 4,281.18

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Solution

The fourth proportional to 7,818.18, 10,788.90 and 4,281.18 is: 5,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.18 : 10,788.90 = 4,281.18 : x
  2. Step 2: Convert to fraction form
    7,818.18/10,788.90 = 4,281.18/x
  3. Step 3: Cross multiply
    7,818.18x = 10,788.90 × 4,281.18
  4. Step 4: Simplify right side
    7,818.18x = 46,189,222.90
  5. Step 5: Solve for x
    x = 46,189,222.90/7,818.18
  6. Step 6: Final answer
    x = 5,907.93

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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.