Home / 9,125.38-13,688.44-2,885.51

Finding the Fourth Proportional to 9,125.38, 13,688.44 and 2,885.51

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Solution

The fourth proportional to 9,125.38, 13,688.44 and 2,885.51 is: 4,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.38 : 13,688.44 = 2,885.51 : x
  2. Step 2: Convert to fraction form
    9,125.38/13,688.44 = 2,885.51/x
  3. Step 3: Cross multiply
    9,125.38x = 13,688.44 × 2,885.51
  4. Step 4: Simplify right side
    9,125.38x = 39,498,130.50
  5. Step 5: Solve for x
    x = 39,498,130.50/9,125.38
  6. Step 6: Final answer
    x = 4,328.38

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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.