Home / 10,913.40-15,044.60-8,676.18

Finding the Fourth Proportional to 10,913.40, 15,044.60 and 8,676.18

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Solution

The fourth proportional to 10,913.40, 15,044.60 and 8,676.18 is: 11,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.40 : 15,044.60 = 8,676.18 : x
  2. Step 2: Convert to fraction form
    10,913.40/15,044.60 = 8,676.18/x
  3. Step 3: Cross multiply
    10,913.40x = 15,044.60 × 8,676.18
  4. Step 4: Simplify right side
    10,913.40x = 130,529,679.32
  5. Step 5: Solve for x
    x = 130,529,679.32/10,913.40
  6. Step 6: Final answer
    x = 11,960.50

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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.