Home / 16,490.64-22,758.36-9,419.28

Finding the Fourth Proportional to 16,490.64, 22,758.36 and 9,419.28

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Solution

The fourth proportional to 16,490.64, 22,758.36 and 9,419.28 is: 12,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.64 : 22,758.36 = 9,419.28 : x
  2. Step 2: Convert to fraction form
    16,490.64/22,758.36 = 9,419.28/x
  3. Step 3: Cross multiply
    16,490.64x = 22,758.36 × 9,419.28
  4. Step 4: Simplify right side
    16,490.64x = 214,367,365.18
  5. Step 5: Solve for x
    x = 214,367,365.18/16,490.64
  6. Step 6: Final answer
    x = 12,999.34

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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.