Home / 13,154.21-19,732.32-4,389.11

Finding the Fourth Proportional to 13,154.21, 19,732.32 and 4,389.11

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Solution

The fourth proportional to 13,154.21, 19,732.32 and 4,389.11 is: 6,584.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.21 : 19,732.32 = 4,389.11 : x
  2. Step 2: Convert to fraction form
    13,154.21/19,732.32 = 4,389.11/x
  3. Step 3: Cross multiply
    13,154.21x = 19,732.32 × 4,389.11
  4. Step 4: Simplify right side
    13,154.21x = 86,607,224.37
  5. Step 5: Solve for x
    x = 86,607,224.37/13,154.21
  6. Step 6: Final answer
    x = 6,584.00

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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.