Home / 18,989.48-26,204.81-10,491.45

Finding the Fourth Proportional to 18,989.48, 26,204.81 and 10,491.45

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Solution

The fourth proportional to 18,989.48, 26,204.81 and 10,491.45 is: 14,477.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.48 : 26,204.81 = 10,491.45 : x
  2. Step 2: Convert to fraction form
    18,989.48/26,204.81 = 10,491.45/x
  3. Step 3: Cross multiply
    18,989.48x = 26,204.81 × 10,491.45
  4. Step 4: Simplify right side
    18,989.48x = 274,926,401.42
  5. Step 5: Solve for x
    x = 274,926,401.42/18,989.48
  6. Step 6: Final answer
    x = 14,477.83

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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.