Home / 15,530.96-21,429.48-9,242.24

Finding the Fourth Proportional to 15,530.96, 21,429.48 and 9,242.24

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Solution

The fourth proportional to 15,530.96, 21,429.48 and 9,242.24 is: 12,752.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,530.96 : 21,429.48 = 9,242.24 : x
  2. Step 2: Convert to fraction form
    15,530.96/21,429.48 = 9,242.24/x
  3. Step 3: Cross multiply
    15,530.96x = 21,429.48 × 9,242.24
  4. Step 4: Simplify right side
    15,530.96x = 198,056,397.24
  5. Step 5: Solve for x
    x = 198,056,397.24/15,530.96
  6. Step 6: Final answer
    x = 12,752.36

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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.