Home / 15,395.52-21,237.36-9,106.68

Finding the Fourth Proportional to 15,395.52, 21,237.36 and 9,106.68

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Solution

The fourth proportional to 15,395.52, 21,237.36 and 9,106.68 is: 12,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.52 : 21,237.36 = 9,106.68 : x
  2. Step 2: Convert to fraction form
    15,395.52/21,237.36 = 9,106.68/x
  3. Step 3: Cross multiply
    15,395.52x = 21,237.36 × 9,106.68
  4. Step 4: Simplify right side
    15,395.52x = 193,401,841.56
  5. Step 5: Solve for x
    x = 193,401,841.56/15,395.52
  6. Step 6: Final answer
    x = 12,562.22

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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.