Home / 10,911.30-16,366.95-10,109.40

Finding the Fourth Proportional to 10,911.30, 16,366.95 and 10,109.40

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Solution

The fourth proportional to 10,911.30, 16,366.95 and 10,109.40 is: 15,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.30 : 16,366.95 = 10,109.40 : x
  2. Step 2: Convert to fraction form
    10,911.30/16,366.95 = 10,109.40/x
  3. Step 3: Cross multiply
    10,911.30x = 16,366.95 × 10,109.40
  4. Step 4: Simplify right side
    10,911.30x = 165,460,044.33
  5. Step 5: Solve for x
    x = 165,460,044.33/10,911.30
  6. Step 6: Final answer
    x = 15,164.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.