Home / 15,774.55-21,778.77-10,937.94

Finding the Fourth Proportional to 15,774.55, 21,778.77 and 10,937.94

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Solution

The fourth proportional to 15,774.55, 21,778.77 and 10,937.94 is: 15,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.55 : 21,778.77 = 10,937.94 : x
  2. Step 2: Convert to fraction form
    15,774.55/21,778.77 = 10,937.94/x
  3. Step 3: Cross multiply
    15,774.55x = 21,778.77 × 10,937.94
  4. Step 4: Simplify right side
    15,774.55x = 238,214,838.88
  5. Step 5: Solve for x
    x = 238,214,838.88/15,774.55
  6. Step 6: Final answer
    x = 15,101.22

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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.