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Finding the Fourth Proportional to 8,124.86, 11,210.38 and 4,938.10

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Solution

The fourth proportional to 8,124.86, 11,210.38 and 4,938.10 is: 6,813.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.86 : 11,210.38 = 4,938.10 : x
  2. Step 2: Convert to fraction form
    8,124.86/11,210.38 = 4,938.10/x
  3. Step 3: Cross multiply
    8,124.86x = 11,210.38 × 4,938.10
  4. Step 4: Simplify right side
    8,124.86x = 55,357,977.48
  5. Step 5: Solve for x
    x = 55,357,977.48/8,124.86
  6. Step 6: Final answer
    x = 6,813.41

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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.