Home / 7,015.24-9,681.06-3,871.52

Finding the Fourth Proportional to 7,015.24, 9,681.06 and 3,871.52

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Solution

The fourth proportional to 7,015.24, 9,681.06 and 3,871.52 is: 5,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.24 : 9,681.06 = 3,871.52 : x
  2. Step 2: Convert to fraction form
    7,015.24/9,681.06 = 3,871.52/x
  3. Step 3: Cross multiply
    7,015.24x = 9,681.06 × 3,871.52
  4. Step 4: Simplify right side
    7,015.24x = 37,480,417.41
  5. Step 5: Solve for x
    x = 37,480,417.41/7,015.24
  6. Step 6: Final answer
    x = 5,342.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.