Home / 15,654.02-21,631.19-11,397.69

Finding the Fourth Proportional to 15,654.02, 21,631.19 and 11,397.69

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Solution

The fourth proportional to 15,654.02, 21,631.19 and 11,397.69 is: 15,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.02 : 21,631.19 = 11,397.69 : x
  2. Step 2: Convert to fraction form
    15,654.02/21,631.19 = 11,397.69/x
  3. Step 3: Cross multiply
    15,654.02x = 21,631.19 × 11,397.69
  4. Step 4: Simplify right side
    15,654.02x = 246,545,597.95
  5. Step 5: Solve for x
    x = 246,545,597.95/15,654.02
  6. Step 6: Final answer
    x = 15,749.67

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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.