Home / 7,478.13-11,206.56-3,316.76

Finding the Fourth Proportional to 7,478.13, 11,206.56 and 3,316.76

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Solution

The fourth proportional to 7,478.13, 11,206.56 and 3,316.76 is: 4,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.13 : 11,206.56 = 3,316.76 : x
  2. Step 2: Convert to fraction form
    7,478.13/11,206.56 = 3,316.76/x
  3. Step 3: Cross multiply
    7,478.13x = 11,206.56 × 3,316.76
  4. Step 4: Simplify right side
    7,478.13x = 37,169,413.91
  5. Step 5: Solve for x
    x = 37,169,413.91/7,478.13
  6. Step 6: Final answer
    x = 4,970.42

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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.