Home / 8,686.24-11,986.80-4,960

Finding the Fourth Proportional to 8,686.24, 11,986.80 and 4,960

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Solution

The fourth proportional to 8,686.24, 11,986.80 and 4,960 is: 6,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.24 : 11,986.80 = 4,960 : x
  2. Step 2: Convert to fraction form
    8,686.24/11,986.80 = 4,960/x
  3. Step 3: Cross multiply
    8,686.24x = 11,986.80 × 4,960
  4. Step 4: Simplify right side
    8,686.24x = 59,454,528
  5. Step 5: Solve for x
    x = 59,454,528/8,686.24
  6. Step 6: Final answer
    x = 6,844.68

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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.