Home / 18,989.93-26,203.87-10,491.55

Finding the Fourth Proportional to 18,989.93, 26,203.87 and 10,491.55

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Solution

The fourth proportional to 18,989.93, 26,203.87 and 10,491.55 is: 14,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.93 : 26,203.87 = 10,491.55 : x
  2. Step 2: Convert to fraction form
    18,989.93/26,203.87 = 10,491.55/x
  3. Step 3: Cross multiply
    18,989.93x = 26,203.87 × 10,491.55
  4. Step 4: Simplify right side
    18,989.93x = 274,919,178.33
  5. Step 5: Solve for x
    x = 274,919,178.33/18,989.93
  6. Step 6: Final answer
    x = 14,477.10

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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.