Home / 10,815.70-16,223.55-10,159.60

Finding the Fourth Proportional to 10,815.70, 16,223.55 and 10,159.60

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Solution

The fourth proportional to 10,815.70, 16,223.55 and 10,159.60 is: 15,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.70 : 16,223.55 = 10,159.60 : x
  2. Step 2: Convert to fraction form
    10,815.70/16,223.55 = 10,159.60/x
  3. Step 3: Cross multiply
    10,815.70x = 16,223.55 × 10,159.60
  4. Step 4: Simplify right side
    10,815.70x = 164,824,778.58
  5. Step 5: Solve for x
    x = 164,824,778.58/10,815.70
  6. Step 6: Final answer
    x = 15,239.40

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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.