Home / 15,235.55-21,034.14-9,575.09

Finding the Fourth Proportional to 15,235.55, 21,034.14 and 9,575.09

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Solution

The fourth proportional to 15,235.55, 21,034.14 and 9,575.09 is: 13,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.55 : 21,034.14 = 9,575.09 : x
  2. Step 2: Convert to fraction form
    15,235.55/21,034.14 = 9,575.09/x
  3. Step 3: Cross multiply
    15,235.55x = 21,034.14 × 9,575.09
  4. Step 4: Simplify right side
    15,235.55x = 201,403,783.57
  5. Step 5: Solve for x
    x = 201,403,783.57/15,235.55
  6. Step 6: Final answer
    x = 13,219.33

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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.