Home / 18,686.08-25,787.26-10,729.84

Finding the Fourth Proportional to 18,686.08, 25,787.26 and 10,729.84

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Solution

The fourth proportional to 18,686.08, 25,787.26 and 10,729.84 is: 14,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.08 : 25,787.26 = 10,729.84 : x
  2. Step 2: Convert to fraction form
    18,686.08/25,787.26 = 10,729.84/x
  3. Step 3: Cross multiply
    18,686.08x = 25,787.26 × 10,729.84
  4. Step 4: Simplify right side
    18,686.08x = 276,693,173.84
  5. Step 5: Solve for x
    x = 276,693,173.84/18,686.08
  6. Step 6: Final answer
    x = 14,807.45

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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.