Home / 15,549.03-21,458.07-8,475.89

Finding the Fourth Proportional to 15,549.03, 21,458.07 and 8,475.89

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Solution

The fourth proportional to 15,549.03, 21,458.07 and 8,475.89 is: 11,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.03 : 21,458.07 = 8,475.89 : x
  2. Step 2: Convert to fraction form
    15,549.03/21,458.07 = 8,475.89/x
  3. Step 3: Cross multiply
    15,549.03x = 21,458.07 × 8,475.89
  4. Step 4: Simplify right side
    15,549.03x = 181,876,133.64
  5. Step 5: Solve for x
    x = 181,876,133.64/15,549.03
  6. Step 6: Final answer
    x = 11,696.94

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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.