Home / 18,828.14-25,982.79-10,870.16

Finding the Fourth Proportional to 18,828.14, 25,982.79 and 10,870.16

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Solution

The fourth proportional to 18,828.14, 25,982.79 and 10,870.16 is: 15,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,828.14 : 25,982.79 = 10,870.16 : x
  2. Step 2: Convert to fraction form
    18,828.14/25,982.79 = 10,870.16/x
  3. Step 3: Cross multiply
    18,828.14x = 25,982.79 × 10,870.16
  4. Step 4: Simplify right side
    18,828.14x = 282,437,084.55
  5. Step 5: Solve for x
    x = 282,437,084.55/18,828.14
  6. Step 6: Final answer
    x = 15,000.80

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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.