Home / 18,818.09-25,968.08-10,862.87

Finding the Fourth Proportional to 18,818.09, 25,968.08 and 10,862.87

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Solution

The fourth proportional to 18,818.09, 25,968.08 and 10,862.87 is: 14,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.09 : 25,968.08 = 10,862.87 : x
  2. Step 2: Convert to fraction form
    18,818.09/25,968.08 = 10,862.87/x
  3. Step 3: Cross multiply
    18,818.09x = 25,968.08 × 10,862.87
  4. Step 4: Simplify right side
    18,818.09x = 282,087,822.88
  5. Step 5: Solve for x
    x = 282,087,822.88/18,818.09
  6. Step 6: Final answer
    x = 14,990.25

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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.