Home / 11,838.78-16,337.19-6,461.34

Finding the Fourth Proportional to 11,838.78, 16,337.19 and 6,461.34

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Solution

The fourth proportional to 11,838.78, 16,337.19 and 6,461.34 is: 8,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.78 : 16,337.19 = 6,461.34 : x
  2. Step 2: Convert to fraction form
    11,838.78/16,337.19 = 6,461.34/x
  3. Step 3: Cross multiply
    11,838.78x = 16,337.19 × 6,461.34
  4. Step 4: Simplify right side
    11,838.78x = 105,560,139.23
  5. Step 5: Solve for x
    x = 105,560,139.23/11,838.78
  6. Step 6: Final answer
    x = 8,916.47

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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.