Home / 18,701.08-25,806.78-10,317.40

Finding the Fourth Proportional to 18,701.08, 25,806.78 and 10,317.40

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Solution

The fourth proportional to 18,701.08, 25,806.78 and 10,317.40 is: 14,237.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.08 : 25,806.78 = 10,317.40 : x
  2. Step 2: Convert to fraction form
    18,701.08/25,806.78 = 10,317.40/x
  3. Step 3: Cross multiply
    18,701.08x = 25,806.78 × 10,317.40
  4. Step 4: Simplify right side
    18,701.08x = 266,258,871.97
  5. Step 5: Solve for x
    x = 266,258,871.97/18,701.08
  6. Step 6: Final answer
    x = 14,237.62

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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.