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Finding the Fourth Proportional to 10,353.30, 15,529.95 and 3,779.70

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Solution

The fourth proportional to 10,353.30, 15,529.95 and 3,779.70 is: 5,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.30 : 15,529.95 = 3,779.70 : x
  2. Step 2: Convert to fraction form
    10,353.30/15,529.95 = 3,779.70/x
  3. Step 3: Cross multiply
    10,353.30x = 15,529.95 × 3,779.70
  4. Step 4: Simplify right side
    10,353.30x = 58,698,552.02
  5. Step 5: Solve for x
    x = 58,698,552.02/10,353.30
  6. Step 6: Final answer
    x = 5,669.55

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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.