Home / 12,140.40-16,758.46-9,488.67

Finding the Fourth Proportional to 12,140.40, 16,758.46 and 9,488.67

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Solution

The fourth proportional to 12,140.40, 16,758.46 and 9,488.67 is: 13,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140.40 : 16,758.46 = 9,488.67 : x
  2. Step 2: Convert to fraction form
    12,140.40/16,758.46 = 9,488.67/x
  3. Step 3: Cross multiply
    12,140.40x = 16,758.46 × 9,488.67
  4. Step 4: Simplify right side
    12,140.40x = 159,015,496.65
  5. Step 5: Solve for x
    x = 159,015,496.65/12,140.40
  6. Step 6: Final answer
    x = 13,098.04

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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.