Home / 13,158.86-18,159.20-7,493.32

Finding the Fourth Proportional to 13,158.86, 18,159.20 and 7,493.32

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Solution

The fourth proportional to 13,158.86, 18,159.20 and 7,493.32 is: 10,340.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.86 : 18,159.20 = 7,493.32 : x
  2. Step 2: Convert to fraction form
    13,158.86/18,159.20 = 7,493.32/x
  3. Step 3: Cross multiply
    13,158.86x = 18,159.20 × 7,493.32
  4. Step 4: Simplify right side
    13,158.86x = 136,072,696.54
  5. Step 5: Solve for x
    x = 136,072,696.54/13,158.86
  6. Step 6: Final answer
    x = 10,340.77

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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.