Home / 7,746.04-11,618.70-3,125.80

Finding the Fourth Proportional to 7,746.04, 11,618.70 and 3,125.80

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Solution

The fourth proportional to 7,746.04, 11,618.70 and 3,125.80 is: 4,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.04 : 11,618.70 = 3,125.80 : x
  2. Step 2: Convert to fraction form
    7,746.04/11,618.70 = 3,125.80/x
  3. Step 3: Cross multiply
    7,746.04x = 11,618.70 × 3,125.80
  4. Step 4: Simplify right side
    7,746.04x = 36,317,732.46
  5. Step 5: Solve for x
    x = 36,317,732.46/7,746.04
  6. Step 6: Final answer
    x = 4,688.55

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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.