Home / 13,588.08-20,382.12-8,970

Finding the Fourth Proportional to 13,588.08, 20,382.12 and 8,970

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Solution

The fourth proportional to 13,588.08, 20,382.12 and 8,970 is: 13,455.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.08 : 20,382.12 = 8,970 : x
  2. Step 2: Convert to fraction form
    13,588.08/20,382.12 = 8,970/x
  3. Step 3: Cross multiply
    13,588.08x = 20,382.12 × 8,970
  4. Step 4: Simplify right side
    13,588.08x = 182,827,616.40
  5. Step 5: Solve for x
    x = 182,827,616.40/13,588.08
  6. Step 6: Final answer
    x = 13,455.00

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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.