Home / 8,538.14-12,790.64-5,607.56

Finding the Fourth Proportional to 8,538.14, 12,790.64 and 5,607.56

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Solution

The fourth proportional to 8,538.14, 12,790.64 and 5,607.56 is: 8,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.14 : 12,790.64 = 5,607.56 : x
  2. Step 2: Convert to fraction form
    8,538.14/12,790.64 = 5,607.56/x
  3. Step 3: Cross multiply
    8,538.14x = 12,790.64 × 5,607.56
  4. Step 4: Simplify right side
    8,538.14x = 71,724,281.24
  5. Step 5: Solve for x
    x = 71,724,281.24/8,538.14
  6. Step 6: Final answer
    x = 8,400.46

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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.