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Finding the Fourth Proportional to 26,670.54, 39,961.98 and 9,130.80

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Solution

The fourth proportional to 26,670.54, 39,961.98 and 9,130.80 is: 13,681.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,670.54 : 39,961.98 = 9,130.80 : x
  2. Step 2: Convert to fraction form
    26,670.54/39,961.98 = 9,130.80/x
  3. Step 3: Cross multiply
    26,670.54x = 39,961.98 × 9,130.80
  4. Step 4: Simplify right side
    26,670.54x = 364,884,846.98
  5. Step 5: Solve for x
    x = 364,884,846.98/26,670.54
  6. Step 6: Final answer
    x = 13,681.19

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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.