Home / 13,995.28-19,313.49-7,707.66

Finding the Fourth Proportional to 13,995.28, 19,313.49 and 7,707.66

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Solution

The fourth proportional to 13,995.28, 19,313.49 and 7,707.66 is: 10,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.28 : 19,313.49 = 7,707.66 : x
  2. Step 2: Convert to fraction form
    13,995.28/19,313.49 = 7,707.66/x
  3. Step 3: Cross multiply
    13,995.28x = 19,313.49 × 7,707.66
  4. Step 4: Simplify right side
    13,995.28x = 148,861,727.46
  5. Step 5: Solve for x
    x = 148,861,727.46/13,995.28
  6. Step 6: Final answer
    x = 10,636.57

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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.