Home / 18,765.12-25,898.40-10,807.14

Finding the Fourth Proportional to 18,765.12, 25,898.40 and 10,807.14

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Solution

The fourth proportional to 18,765.12, 25,898.40 and 10,807.14 is: 14,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.12 : 25,898.40 = 10,807.14 : x
  2. Step 2: Convert to fraction form
    18,765.12/25,898.40 = 10,807.14/x
  3. Step 3: Cross multiply
    18,765.12x = 25,898.40 × 10,807.14
  4. Step 4: Simplify right side
    18,765.12x = 279,887,634.58
  5. Step 5: Solve for x
    x = 279,887,634.58/18,765.12
  6. Step 6: Final answer
    x = 14,915.31

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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.