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Finding the Fourth Proportional to 6,944.95, 10,407.70 and 4,987.99

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Solution

The fourth proportional to 6,944.95, 10,407.70 and 4,987.99 is: 7,474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,944.95 : 10,407.70 = 4,987.99 : x
  2. Step 2: Convert to fraction form
    6,944.95/10,407.70 = 4,987.99/x
  3. Step 3: Cross multiply
    6,944.95x = 10,407.70 × 4,987.99
  4. Step 4: Simplify right side
    6,944.95x = 51,913,426.54
  5. Step 5: Solve for x
    x = 51,913,426.54/6,944.95
  6. Step 6: Final answer
    x = 7,474.99

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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.