Home / 15,129.34-22,650.18-12,636.16

Finding the Fourth Proportional to 15,129.34, 22,650.18 and 12,636.16

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Solution

The fourth proportional to 15,129.34, 22,650.18 and 12,636.16 is: 18,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.34 : 22,650.18 = 12,636.16 : x
  2. Step 2: Convert to fraction form
    15,129.34/22,650.18 = 12,636.16/x
  3. Step 3: Cross multiply
    15,129.34x = 22,650.18 × 12,636.16
  4. Step 4: Simplify right side
    15,129.34x = 286,211,298.51
  5. Step 5: Solve for x
    x = 286,211,298.51/15,129.34
  6. Step 6: Final answer
    x = 18,917.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.