Home / 15,710.56-21,688.97-9,747.34

Finding the Fourth Proportional to 15,710.56, 21,688.97 and 9,747.34

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Solution

The fourth proportional to 15,710.56, 21,688.97 and 9,747.34 is: 13,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.56 : 21,688.97 = 9,747.34 : x
  2. Step 2: Convert to fraction form
    15,710.56/21,688.97 = 9,747.34/x
  3. Step 3: Cross multiply
    15,710.56x = 21,688.97 × 9,747.34
  4. Step 4: Simplify right side
    15,710.56x = 211,409,661.88
  5. Step 5: Solve for x
    x = 211,409,661.88/15,710.56
  6. Step 6: Final answer
    x = 13,456.53

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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.