Home / 18,943.02-26,143.88-10,983.60

Finding the Fourth Proportional to 18,943.02, 26,143.88 and 10,983.60

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Solution

The fourth proportional to 18,943.02, 26,143.88 and 10,983.60 is: 15,158.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.02 : 26,143.88 = 10,983.60 : x
  2. Step 2: Convert to fraction form
    18,943.02/26,143.88 = 10,983.60/x
  3. Step 3: Cross multiply
    18,943.02x = 26,143.88 × 10,983.60
  4. Step 4: Simplify right side
    18,943.02x = 287,153,865.45
  5. Step 5: Solve for x
    x = 287,153,865.45/18,943.02
  6. Step 6: Final answer
    x = 15,158.82

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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.