Home / 10,981.79-15,154.91-5,946.07

Finding the Fourth Proportional to 10,981.79, 15,154.91 and 5,946.07

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Solution

The fourth proportional to 10,981.79, 15,154.91 and 5,946.07 is: 8,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.79 : 15,154.91 = 5,946.07 : x
  2. Step 2: Convert to fraction form
    10,981.79/15,154.91 = 5,946.07/x
  3. Step 3: Cross multiply
    10,981.79x = 15,154.91 × 5,946.07
  4. Step 4: Simplify right side
    10,981.79x = 90,112,110.38
  5. Step 5: Solve for x
    x = 90,112,110.38/10,981.79
  6. Step 6: Final answer
    x = 8,205.59

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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.