Home / 19,812.18-27,341.07-12,740.94

Finding the Fourth Proportional to 19,812.18, 27,341.07 and 12,740.94

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Solution

The fourth proportional to 19,812.18, 27,341.07 and 12,740.94 is: 17,582.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.18 : 27,341.07 = 12,740.94 : x
  2. Step 2: Convert to fraction form
    19,812.18/27,341.07 = 12,740.94/x
  3. Step 3: Cross multiply
    19,812.18x = 27,341.07 × 12,740.94
  4. Step 4: Simplify right side
    19,812.18x = 348,350,932.41
  5. Step 5: Solve for x
    x = 348,350,932.41/19,812.18
  6. Step 6: Final answer
    x = 17,582.67

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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.