Home / 18,435.60-25,442.64-10,480.32

Finding the Fourth Proportional to 18,435.60, 25,442.64 and 10,480.32

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Solution

The fourth proportional to 18,435.60, 25,442.64 and 10,480.32 is: 14,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435.60 : 25,442.64 = 10,480.32 : x
  2. Step 2: Convert to fraction form
    18,435.60/25,442.64 = 10,480.32/x
  3. Step 3: Cross multiply
    18,435.60x = 25,442.64 × 10,480.32
  4. Step 4: Simplify right side
    18,435.60x = 266,647,008.84
  5. Step 5: Solve for x
    x = 266,647,008.84/18,435.60
  6. Step 6: Final answer
    x = 14,463.70

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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.