Home / 13,313.66-19,955.91-6,730.79

Finding the Fourth Proportional to 13,313.66, 19,955.91 and 6,730.79

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Solution

The fourth proportional to 13,313.66, 19,955.91 and 6,730.79 is: 10,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.66 : 19,955.91 = 6,730.79 : x
  2. Step 2: Convert to fraction form
    13,313.66/19,955.91 = 6,730.79/x
  3. Step 3: Cross multiply
    13,313.66x = 19,955.91 × 6,730.79
  4. Step 4: Simplify right side
    13,313.66x = 134,319,039.47
  5. Step 5: Solve for x
    x = 134,319,039.47/13,313.66
  6. Step 6: Final answer
    x = 10,088.81

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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.