Home / 13,537.46-18,681.58-7,488.12

Finding the Fourth Proportional to 13,537.46, 18,681.58 and 7,488.12

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Solution

The fourth proportional to 13,537.46, 18,681.58 and 7,488.12 is: 10,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.46 : 18,681.58 = 7,488.12 : x
  2. Step 2: Convert to fraction form
    13,537.46/18,681.58 = 7,488.12/x
  3. Step 3: Cross multiply
    13,537.46x = 18,681.58 × 7,488.12
  4. Step 4: Simplify right side
    13,537.46x = 139,889,912.83
  5. Step 5: Solve for x
    x = 139,889,912.83/13,537.46
  6. Step 6: Final answer
    x = 10,333.54

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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.