Home / 11,455.30-15,807.58-6,738.67

Finding the Fourth Proportional to 11,455.30, 15,807.58 and 6,738.67

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Solution

The fourth proportional to 11,455.30, 15,807.58 and 6,738.67 is: 9,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.30 : 15,807.58 = 6,738.67 : x
  2. Step 2: Convert to fraction form
    11,455.30/15,807.58 = 6,738.67/x
  3. Step 3: Cross multiply
    11,455.30x = 15,807.58 × 6,738.67
  4. Step 4: Simplify right side
    11,455.30x = 106,522,065.12
  5. Step 5: Solve for x
    x = 106,522,065.12/11,455.30
  6. Step 6: Final answer
    x = 9,298.93

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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.