Home / 13,356.54-18,437.69-8,323.24

Finding the Fourth Proportional to 13,356.54, 18,437.69 and 8,323.24

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Solution

The fourth proportional to 13,356.54, 18,437.69 and 8,323.24 is: 11,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.54 : 18,437.69 = 8,323.24 : x
  2. Step 2: Convert to fraction form
    13,356.54/18,437.69 = 8,323.24/x
  3. Step 3: Cross multiply
    13,356.54x = 18,437.69 × 8,323.24
  4. Step 4: Simplify right side
    13,356.54x = 153,461,385.82
  5. Step 5: Solve for x
    x = 153,461,385.82/13,356.54
  6. Step 6: Final answer
    x = 11,489.61

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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.