Home / 8,099.04-12,129.72-7,818.43

Finding the Fourth Proportional to 8,099.04, 12,129.72 and 7,818.43

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Solution

The fourth proportional to 8,099.04, 12,129.72 and 7,818.43 is: 11,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.04 : 12,129.72 = 7,818.43 : x
  2. Step 2: Convert to fraction form
    8,099.04/12,129.72 = 7,818.43/x
  3. Step 3: Cross multiply
    8,099.04x = 12,129.72 × 7,818.43
  4. Step 4: Simplify right side
    8,099.04x = 94,835,366.74
  5. Step 5: Solve for x
    x = 94,835,366.74/8,099.04
  6. Step 6: Final answer
    x = 11,709.46

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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.