Home / 7,726.94-10,663.14-4,190.15

Finding the Fourth Proportional to 7,726.94, 10,663.14 and 4,190.15

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Solution

The fourth proportional to 7,726.94, 10,663.14 and 4,190.15 is: 5,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.94 : 10,663.14 = 4,190.15 : x
  2. Step 2: Convert to fraction form
    7,726.94/10,663.14 = 4,190.15/x
  3. Step 3: Cross multiply
    7,726.94x = 10,663.14 × 4,190.15
  4. Step 4: Simplify right side
    7,726.94x = 44,680,102.76
  5. Step 5: Solve for x
    x = 44,680,102.76/7,726.94
  6. Step 6: Final answer
    x = 5,782.38

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Half scale
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Double scale
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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.