Home / 26,115.76-39,168.63-7,391.28

Finding the Fourth Proportional to 26,115.76, 39,168.63 and 7,391.28

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Solution

The fourth proportional to 26,115.76, 39,168.63 and 7,391.28 is: 11,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,115.76 : 39,168.63 = 7,391.28 : x
  2. Step 2: Convert to fraction form
    26,115.76/39,168.63 = 7,391.28/x
  3. Step 3: Cross multiply
    26,115.76x = 39,168.63 × 7,391.28
  4. Step 4: Simplify right side
    26,115.76x = 289,506,311.55
  5. Step 5: Solve for x
    x = 289,506,311.55/26,115.76
  6. Step 6: Final answer
    x = 11,085.50

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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.