Home / 10,871.61-16,302.14-5,318.45

Finding the Fourth Proportional to 10,871.61, 16,302.14 and 5,318.45

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Solution

The fourth proportional to 10,871.61, 16,302.14 and 5,318.45 is: 7,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.61 : 16,302.14 = 5,318.45 : x
  2. Step 2: Convert to fraction form
    10,871.61/16,302.14 = 5,318.45/x
  3. Step 3: Cross multiply
    10,871.61x = 16,302.14 × 5,318.45
  4. Step 4: Simplify right side
    10,871.61x = 86,702,116.48
  5. Step 5: Solve for x
    x = 86,702,116.48/10,871.61
  6. Step 6: Final answer
    x = 7,975.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.