Home / 13,827.32-19,082.15-7,858.64

Finding the Fourth Proportional to 13,827.32, 19,082.15 and 7,858.64

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Solution

The fourth proportional to 13,827.32, 19,082.15 and 7,858.64 is: 10,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.32 : 19,082.15 = 7,858.64 : x
  2. Step 2: Convert to fraction form
    13,827.32/19,082.15 = 7,858.64/x
  3. Step 3: Cross multiply
    13,827.32x = 19,082.15 × 7,858.64
  4. Step 4: Simplify right side
    13,827.32x = 149,959,747.28
  5. Step 5: Solve for x
    x = 149,959,747.28/13,827.32
  6. Step 6: Final answer
    x = 10,845.18

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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.