Home / 14,146.32-21,219.60-7,225.68

Finding the Fourth Proportional to 14,146.32, 21,219.60 and 7,225.68

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Solution

The fourth proportional to 14,146.32, 21,219.60 and 7,225.68 is: 10,838.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.32 : 21,219.60 = 7,225.68 : x
  2. Step 2: Convert to fraction form
    14,146.32/21,219.60 = 7,225.68/x
  3. Step 3: Cross multiply
    14,146.32x = 21,219.60 × 7,225.68
  4. Step 4: Simplify right side
    14,146.32x = 153,326,039.33
  5. Step 5: Solve for x
    x = 153,326,039.33/14,146.32
  6. Step 6: Final answer
    x = 10,838.58

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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.