Home / 13,935.48-19,224.90-7,964.97

Finding the Fourth Proportional to 13,935.48, 19,224.90 and 7,964.97

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Solution

The fourth proportional to 13,935.48, 19,224.90 and 7,964.97 is: 10,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.48 : 19,224.90 = 7,964.97 : x
  2. Step 2: Convert to fraction form
    13,935.48/19,224.90 = 7,964.97/x
  3. Step 3: Cross multiply
    13,935.48x = 19,224.90 × 7,964.97
  4. Step 4: Simplify right side
    13,935.48x = 153,125,751.75
  5. Step 5: Solve for x
    x = 153,125,751.75/13,935.48
  6. Step 6: Final answer
    x = 10,988.19

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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.