Home / 13,386.16-20,079.40-6,366.92

Finding the Fourth Proportional to 13,386.16, 20,079.40 and 6,366.92

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Solution

The fourth proportional to 13,386.16, 20,079.40 and 6,366.92 is: 9,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.16 : 20,079.40 = 6,366.92 : x
  2. Step 2: Convert to fraction form
    13,386.16/20,079.40 = 6,366.92/x
  3. Step 3: Cross multiply
    13,386.16x = 20,079.40 × 6,366.92
  4. Step 4: Simplify right side
    13,386.16x = 127,843,933.45
  5. Step 5: Solve for x
    x = 127,843,933.45/13,386.16
  6. Step 6: Final answer
    x = 9,550.46

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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.