Home / 11,384.56-15,709.12-6,670.32

Finding the Fourth Proportional to 11,384.56, 15,709.12 and 6,670.32

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Solution

The fourth proportional to 11,384.56, 15,709.12 and 6,670.32 is: 9,204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.56 : 15,709.12 = 6,670.32 : x
  2. Step 2: Convert to fraction form
    11,384.56/15,709.12 = 6,670.32/x
  3. Step 3: Cross multiply
    11,384.56x = 15,709.12 × 6,670.32
  4. Step 4: Simplify right side
    11,384.56x = 104,784,857.32
  5. Step 5: Solve for x
    x = 104,784,857.32/11,384.56
  6. Step 6: Final answer
    x = 9,204.12

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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.