Home / 10,303.86-15,455.88-3,640.53

Finding the Fourth Proportional to 10,303.86, 15,455.88 and 3,640.53

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Solution

The fourth proportional to 10,303.86, 15,455.88 and 3,640.53 is: 5,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.86 : 15,455.88 = 3,640.53 : x
  2. Step 2: Convert to fraction form
    10,303.86/15,455.88 = 3,640.53/x
  3. Step 3: Cross multiply
    10,303.86x = 15,455.88 × 3,640.53
  4. Step 4: Simplify right side
    10,303.86x = 56,267,594.82
  5. Step 5: Solve for x
    x = 56,267,594.82/10,303.86
  6. Step 6: Final answer
    x = 5,460.83

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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.