Home / 18,949.02-26,152.16-10,989.60

Finding the Fourth Proportional to 18,949.02, 26,152.16 and 10,989.60

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Solution

The fourth proportional to 18,949.02, 26,152.16 and 10,989.60 is: 15,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.02 : 26,152.16 = 10,989.60 : x
  2. Step 2: Convert to fraction form
    18,949.02/26,152.16 = 10,989.60/x
  3. Step 3: Cross multiply
    18,949.02x = 26,152.16 × 10,989.60
  4. Step 4: Simplify right side
    18,949.02x = 287,401,722.59
  5. Step 5: Solve for x
    x = 287,401,722.59/18,949.02
  6. Step 6: Final answer
    x = 15,167.10

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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.