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Finding the Fourth Proportional to 15,210.90, 22,813.86 and 5,347.86

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Solution

The fourth proportional to 15,210.90, 22,813.86 and 5,347.86 is: 8,020.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.90 : 22,813.86 = 5,347.86 : x
  2. Step 2: Convert to fraction form
    15,210.90/22,813.86 = 5,347.86/x
  3. Step 3: Cross multiply
    15,210.90x = 22,813.86 × 5,347.86
  4. Step 4: Simplify right side
    15,210.90x = 122,005,329.34
  5. Step 5: Solve for x
    x = 122,005,329.34/15,210.90
  6. Step 6: Final answer
    x = 8,020.91

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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.