Home / 8,315.90-11,472.76-5,331.26

Finding the Fourth Proportional to 8,315.90, 11,472.76 and 5,331.26

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Solution

The fourth proportional to 8,315.90, 11,472.76 and 5,331.26 is: 7,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.90 : 11,472.76 = 5,331.26 : x
  2. Step 2: Convert to fraction form
    8,315.90/11,472.76 = 5,331.26/x
  3. Step 3: Cross multiply
    8,315.90x = 11,472.76 × 5,331.26
  4. Step 4: Simplify right side
    8,315.90x = 61,164,266.48
  5. Step 5: Solve for x
    x = 61,164,266.48/8,315.90
  6. Step 6: Final answer
    x = 7,355.10

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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.