Home / 15,298.68-21,092.46-9,911.52

Finding the Fourth Proportional to 15,298.68, 21,092.46 and 9,911.52

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Solution

The fourth proportional to 15,298.68, 21,092.46 and 9,911.52 is: 13,665.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.68 : 21,092.46 = 9,911.52 : x
  2. Step 2: Convert to fraction form
    15,298.68/21,092.46 = 9,911.52/x
  3. Step 3: Cross multiply
    15,298.68x = 21,092.46 × 9,911.52
  4. Step 4: Simplify right side
    15,298.68x = 209,058,339.14
  5. Step 5: Solve for x
    x = 209,058,339.14/15,298.68
  6. Step 6: Final answer
    x = 13,665.12

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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.