Home / 18,816.90-25,966.74-10,318.58

Finding the Fourth Proportional to 18,816.90, 25,966.74 and 10,318.58

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Solution

The fourth proportional to 18,816.90, 25,966.74 and 10,318.58 is: 14,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.90 : 25,966.74 = 10,318.58 : x
  2. Step 2: Convert to fraction form
    18,816.90/25,966.74 = 10,318.58/x
  3. Step 3: Cross multiply
    18,816.90x = 25,966.74 × 10,318.58
  4. Step 4: Simplify right side
    18,816.90x = 267,939,884.03
  5. Step 5: Solve for x
    x = 267,939,884.03/18,816.90
  6. Step 6: Final answer
    x = 14,239.32

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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.