Home / 8,916.48-13,378.77-4,757.49

Finding the Fourth Proportional to 8,916.48, 13,378.77 and 4,757.49

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Solution

The fourth proportional to 8,916.48, 13,378.77 and 4,757.49 is: 7,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.48 : 13,378.77 = 4,757.49 : x
  2. Step 2: Convert to fraction form
    8,916.48/13,378.77 = 4,757.49/x
  3. Step 3: Cross multiply
    8,916.48x = 13,378.77 × 4,757.49
  4. Step 4: Simplify right side
    8,916.48x = 63,649,364.49
  5. Step 5: Solve for x
    x = 63,649,364.49/8,916.48
  6. Step 6: Final answer
    x = 7,138.40

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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.