Home / 14,238.64-21,358.02-8,388.28

Finding the Fourth Proportional to 14,238.64, 21,358.02 and 8,388.28

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Solution

The fourth proportional to 14,238.64, 21,358.02 and 8,388.28 is: 12,582.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.64 : 21,358.02 = 8,388.28 : x
  2. Step 2: Convert to fraction form
    14,238.64/21,358.02 = 8,388.28/x
  3. Step 3: Cross multiply
    14,238.64x = 21,358.02 × 8,388.28
  4. Step 4: Simplify right side
    14,238.64x = 179,157,052.01
  5. Step 5: Solve for x
    x = 179,157,052.01/14,238.64
  6. Step 6: Final answer
    x = 12,582.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.