Home / 13,309.38-19,976.34-6,740.16

Finding the Fourth Proportional to 13,309.38, 19,976.34 and 6,740.16

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Solution

The fourth proportional to 13,309.38, 19,976.34 and 6,740.16 is: 10,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.38 : 19,976.34 = 6,740.16 : x
  2. Step 2: Convert to fraction form
    13,309.38/19,976.34 = 6,740.16/x
  3. Step 3: Cross multiply
    13,309.38x = 19,976.34 × 6,740.16
  4. Step 4: Simplify right side
    13,309.38x = 134,643,727.81
  5. Step 5: Solve for x
    x = 134,643,727.81/13,309.38
  6. Step 6: Final answer
    x = 10,116.45

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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.