Home / 18,359.40-25,335-10,403.04

Finding the Fourth Proportional to 18,359.40, 25,335 and 10,403.04

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Solution

The fourth proportional to 18,359.40, 25,335 and 10,403.04 is: 14,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.40 : 25,335 = 10,403.04 : x
  2. Step 2: Convert to fraction form
    18,359.40/25,335 = 10,403.04/x
  3. Step 3: Cross multiply
    18,359.40x = 25,335 × 10,403.04
  4. Step 4: Simplify right side
    18,359.40x = 263,561,018.40
  5. Step 5: Solve for x
    x = 263,561,018.40/18,359.40
  6. Step 6: Final answer
    x = 14,355.64

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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.