Home / 15,502.48-21,391.04-9,129.34

Finding the Fourth Proportional to 15,502.48, 21,391.04 and 9,129.34

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Solution

The fourth proportional to 15,502.48, 21,391.04 and 9,129.34 is: 12,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.48 : 21,391.04 = 9,129.34 : x
  2. Step 2: Convert to fraction form
    15,502.48/21,391.04 = 9,129.34/x
  3. Step 3: Cross multiply
    15,502.48x = 21,391.04 × 9,129.34
  4. Step 4: Simplify right side
    15,502.48x = 195,285,993.88
  5. Step 5: Solve for x
    x = 195,285,993.88/15,502.48
  6. Step 6: Final answer
    x = 12,597.08

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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.