Home / 13,366.01-18,445.12-7,398.57

Finding the Fourth Proportional to 13,366.01, 18,445.12 and 7,398.57

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Solution

The fourth proportional to 13,366.01, 18,445.12 and 7,398.57 is: 10,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.01 : 18,445.12 = 7,398.57 : x
  2. Step 2: Convert to fraction form
    13,366.01/18,445.12 = 7,398.57/x
  3. Step 3: Cross multiply
    13,366.01x = 18,445.12 × 7,398.57
  4. Step 4: Simplify right side
    13,366.01x = 136,467,562.15
  5. Step 5: Solve for x
    x = 136,467,562.15/13,366.01
  6. Step 6: Final answer
    x = 10,210.04

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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.