Home / 18,336.64-25,301.82-10,782.40

Finding the Fourth Proportional to 18,336.64, 25,301.82 and 10,782.40

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Solution

The fourth proportional to 18,336.64, 25,301.82 and 10,782.40 is: 14,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.64 : 25,301.82 = 10,782.40 : x
  2. Step 2: Convert to fraction form
    18,336.64/25,301.82 = 10,782.40/x
  3. Step 3: Cross multiply
    18,336.64x = 25,301.82 × 10,782.40
  4. Step 4: Simplify right side
    18,336.64x = 272,814,343.97
  5. Step 5: Solve for x
    x = 272,814,343.97/18,336.64
  6. Step 6: Final answer
    x = 14,878.10

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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.