Home / 10,142.56-13,988.16-6,558.08

Finding the Fourth Proportional to 10,142.56, 13,988.16 and 6,558.08

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Solution

The fourth proportional to 10,142.56, 13,988.16 and 6,558.08 is: 9,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.56 : 13,988.16 = 6,558.08 : x
  2. Step 2: Convert to fraction form
    10,142.56/13,988.16 = 6,558.08/x
  3. Step 3: Cross multiply
    10,142.56x = 13,988.16 × 6,558.08
  4. Step 4: Simplify right side
    10,142.56x = 91,735,472.33
  5. Step 5: Solve for x
    x = 91,735,472.33/10,142.56
  6. Step 6: Final answer
    x = 9,044.61

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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.