Home / 15,269.56-21,071.73-8,555.16

Finding the Fourth Proportional to 15,269.56, 21,071.73 and 8,555.16

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Solution

The fourth proportional to 15,269.56, 21,071.73 and 8,555.16 is: 11,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269.56 : 21,071.73 = 8,555.16 : x
  2. Step 2: Convert to fraction form
    15,269.56/21,071.73 = 8,555.16/x
  3. Step 3: Cross multiply
    15,269.56x = 21,071.73 × 8,555.16
  4. Step 4: Simplify right side
    15,269.56x = 180,272,021.63
  5. Step 5: Solve for x
    x = 180,272,021.63/15,269.56
  6. Step 6: Final answer
    x = 11,805.97

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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.