Home / 7,911.10-10,916.49-4,374.10

Finding the Fourth Proportional to 7,911.10, 10,916.49 and 4,374.10

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Solution

The fourth proportional to 7,911.10, 10,916.49 and 4,374.10 is: 6,035.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.10 : 10,916.49 = 4,374.10 : x
  2. Step 2: Convert to fraction form
    7,911.10/10,916.49 = 4,374.10/x
  3. Step 3: Cross multiply
    7,911.10x = 10,916.49 × 4,374.10
  4. Step 4: Simplify right side
    7,911.10x = 47,749,818.91
  5. Step 5: Solve for x
    x = 47,749,818.91/7,911.10
  6. Step 6: Final answer
    x = 6,035.80

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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.