Home / 13,561.21-20,308.74-9,389.44

Finding the Fourth Proportional to 13,561.21, 20,308.74 and 9,389.44

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Solution

The fourth proportional to 13,561.21, 20,308.74 and 9,389.44 is: 14,061.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.21 : 20,308.74 = 9,389.44 : x
  2. Step 2: Convert to fraction form
    13,561.21/20,308.74 = 9,389.44/x
  3. Step 3: Cross multiply
    13,561.21x = 20,308.74 × 9,389.44
  4. Step 4: Simplify right side
    13,561.21x = 190,687,695.71
  5. Step 5: Solve for x
    x = 190,687,695.71/13,561.21
  6. Step 6: Final answer
    x = 14,061.26

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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.