Home / 13,235.19-18,264.12-7,569.86

Finding the Fourth Proportional to 13,235.19, 18,264.12 and 7,569.86

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Solution

The fourth proportional to 13,235.19, 18,264.12 and 7,569.86 is: 10,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.19 : 18,264.12 = 7,569.86 : x
  2. Step 2: Convert to fraction form
    13,235.19/18,264.12 = 7,569.86/x
  3. Step 3: Cross multiply
    13,235.19x = 18,264.12 × 7,569.86
  4. Step 4: Simplify right side
    13,235.19x = 138,256,740.10
  5. Step 5: Solve for x
    x = 138,256,740.10/13,235.19
  6. Step 6: Final answer
    x = 10,446.15

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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.