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Finding the Fourth Proportional to 17,389.40, 26,064.90 and 9,603.80

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Solution

The fourth proportional to 17,389.40, 26,064.90 and 9,603.80 is: 14,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,389.40 : 26,064.90 = 9,603.80 : x
  2. Step 2: Convert to fraction form
    17,389.40/26,064.90 = 9,603.80/x
  3. Step 3: Cross multiply
    17,389.40x = 26,064.90 × 9,603.80
  4. Step 4: Simplify right side
    17,389.40x = 250,322,086.62
  5. Step 5: Solve for x
    x = 250,322,086.62/17,389.40
  6. Step 6: Final answer
    x = 14,395.10

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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.