Home / 6,987.95-10,478.84-3,700.27

Finding the Fourth Proportional to 6,987.95, 10,478.84 and 3,700.27

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Solution

The fourth proportional to 6,987.95, 10,478.84 and 3,700.27 is: 5,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.95 : 10,478.84 = 3,700.27 : x
  2. Step 2: Convert to fraction form
    6,987.95/10,478.84 = 3,700.27/x
  3. Step 3: Cross multiply
    6,987.95x = 10,478.84 × 3,700.27
  4. Step 4: Simplify right side
    6,987.95x = 38,774,548.37
  5. Step 5: Solve for x
    x = 38,774,548.37/6,987.95
  6. Step 6: Final answer
    x = 5,548.78

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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.