Home / 10,391.78-14,341.50-5,916.93

Finding the Fourth Proportional to 10,391.78, 14,341.50 and 5,916.93

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Solution

The fourth proportional to 10,391.78, 14,341.50 and 5,916.93 is: 8,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.78 : 14,341.50 = 5,916.93 : x
  2. Step 2: Convert to fraction form
    10,391.78/14,341.50 = 5,916.93/x
  3. Step 3: Cross multiply
    10,391.78x = 14,341.50 × 5,916.93
  4. Step 4: Simplify right side
    10,391.78x = 84,857,651.60
  5. Step 5: Solve for x
    x = 84,857,651.60/10,391.78
  6. Step 6: Final answer
    x = 8,165.85

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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.