Home / 9,518.95-13,123.92-6,155.83

Finding the Fourth Proportional to 9,518.95, 13,123.92 and 6,155.83

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Solution

The fourth proportional to 9,518.95, 13,123.92 and 6,155.83 is: 8,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.95 : 13,123.92 = 6,155.83 : x
  2. Step 2: Convert to fraction form
    9,518.95/13,123.92 = 6,155.83/x
  3. Step 3: Cross multiply
    9,518.95x = 13,123.92 × 6,155.83
  4. Step 4: Simplify right side
    9,518.95x = 80,788,620.45
  5. Step 5: Solve for x
    x = 80,788,620.45/9,518.95
  6. Step 6: Final answer
    x = 8,487.14

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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.