Home / 15,669.29-21,621.86-9,293.58

Finding the Fourth Proportional to 15,669.29, 21,621.86 and 9,293.58

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Solution

The fourth proportional to 15,669.29, 21,621.86 and 9,293.58 is: 12,824.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.29 : 21,621.86 = 9,293.58 : x
  2. Step 2: Convert to fraction form
    15,669.29/21,621.86 = 9,293.58/x
  3. Step 3: Cross multiply
    15,669.29x = 21,621.86 × 9,293.58
  4. Step 4: Simplify right side
    15,669.29x = 200,944,439.19
  5. Step 5: Solve for x
    x = 200,944,439.19/15,669.29
  6. Step 6: Final answer
    x = 12,824.10

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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.