Home / 15,037.22-20,749.66-8,322.29

Finding the Fourth Proportional to 15,037.22, 20,749.66 and 8,322.29

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Solution

The fourth proportional to 15,037.22, 20,749.66 and 8,322.29 is: 11,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037.22 : 20,749.66 = 8,322.29 : x
  2. Step 2: Convert to fraction form
    15,037.22/20,749.66 = 8,322.29/x
  3. Step 3: Cross multiply
    15,037.22x = 20,749.66 × 8,322.29
  4. Step 4: Simplify right side
    15,037.22x = 172,684,746.19
  5. Step 5: Solve for x
    x = 172,684,746.19/15,037.22
  6. Step 6: Final answer
    x = 11,483.82

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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.