Home / 11,349.90-15,663.31-6,871.12

Finding the Fourth Proportional to 11,349.90, 15,663.31 and 6,871.12

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Solution

The fourth proportional to 11,349.90, 15,663.31 and 6,871.12 is: 9,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.90 : 15,663.31 = 6,871.12 : x
  2. Step 2: Convert to fraction form
    11,349.90/15,663.31 = 6,871.12/x
  3. Step 3: Cross multiply
    11,349.90x = 15,663.31 × 6,871.12
  4. Step 4: Simplify right side
    11,349.90x = 107,624,426.27
  5. Step 5: Solve for x
    x = 107,624,426.27/11,349.90
  6. Step 6: Final answer
    x = 9,482.41

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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.