Home / 14,148.80-21,223.20-4,914.80

Finding the Fourth Proportional to 14,148.80, 21,223.20 and 4,914.80

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Solution

The fourth proportional to 14,148.80, 21,223.20 and 4,914.80 is: 7,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.80 : 21,223.20 = 4,914.80 : x
  2. Step 2: Convert to fraction form
    14,148.80/21,223.20 = 4,914.80/x
  3. Step 3: Cross multiply
    14,148.80x = 21,223.20 × 4,914.80
  4. Step 4: Simplify right side
    14,148.80x = 104,307,783.36
  5. Step 5: Solve for x
    x = 104,307,783.36/14,148.80
  6. Step 6: Final answer
    x = 7,372.20

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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.