Home / 13,376.30-18,462.38-8,900.24

Finding the Fourth Proportional to 13,376.30, 18,462.38 and 8,900.24

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Solution

The fourth proportional to 13,376.30, 18,462.38 and 8,900.24 is: 12,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.30 : 18,462.38 = 8,900.24 : x
  2. Step 2: Convert to fraction form
    13,376.30/18,462.38 = 8,900.24/x
  3. Step 3: Cross multiply
    13,376.30x = 18,462.38 × 8,900.24
  4. Step 4: Simplify right side
    13,376.30x = 164,319,476.16
  5. Step 5: Solve for x
    x = 164,319,476.16/13,376.30
  6. Step 6: Final answer
    x = 12,284.38

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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.