Home / 14,258.39-21,389.89-4,395.36

Finding the Fourth Proportional to 14,258.39, 21,389.89 and 4,395.36

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Solution

The fourth proportional to 14,258.39, 21,389.89 and 4,395.36 is: 6,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.39 : 21,389.89 = 4,395.36 : x
  2. Step 2: Convert to fraction form
    14,258.39/21,389.89 = 4,395.36/x
  3. Step 3: Cross multiply
    14,258.39x = 21,389.89 × 4,395.36
  4. Step 4: Simplify right side
    14,258.39x = 94,016,190.47
  5. Step 5: Solve for x
    x = 94,016,190.47/14,258.39
  6. Step 6: Final answer
    x = 6,593.75

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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.