Home / 15,589.26-21,513.60-9,305.28

Finding the Fourth Proportional to 15,589.26, 21,513.60 and 9,305.28

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Solution

The fourth proportional to 15,589.26, 21,513.60 and 9,305.28 is: 12,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.26 : 21,513.60 = 9,305.28 : x
  2. Step 2: Convert to fraction form
    15,589.26/21,513.60 = 9,305.28/x
  3. Step 3: Cross multiply
    15,589.26x = 21,513.60 × 9,305.28
  4. Step 4: Simplify right side
    15,589.26x = 200,190,071.81
  5. Step 5: Solve for x
    x = 200,190,071.81/15,589.26
  6. Step 6: Final answer
    x = 12,841.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.