Home / 17,663.49-26,489.38-7,130.79

Finding the Fourth Proportional to 17,663.49, 26,489.38 and 7,130.79

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Solution

The fourth proportional to 17,663.49, 26,489.38 and 7,130.79 is: 10,693.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,663.49 : 26,489.38 = 7,130.79 : x
  2. Step 2: Convert to fraction form
    17,663.49/26,489.38 = 7,130.79/x
  3. Step 3: Cross multiply
    17,663.49x = 26,489.38 × 7,130.79
  4. Step 4: Simplify right side
    17,663.49x = 188,890,206.01
  5. Step 5: Solve for x
    x = 188,890,206.01/17,663.49
  6. Step 6: Final answer
    x = 10,693.82

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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.