Home / 14,219.50-21,329.25-4,985.50

Finding the Fourth Proportional to 14,219.50, 21,329.25 and 4,985.50

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Solution

The fourth proportional to 14,219.50, 21,329.25 and 4,985.50 is: 7,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.50 : 21,329.25 = 4,985.50 : x
  2. Step 2: Convert to fraction form
    14,219.50/21,329.25 = 4,985.50/x
  3. Step 3: Cross multiply
    14,219.50x = 21,329.25 × 4,985.50
  4. Step 4: Simplify right side
    14,219.50x = 106,336,975.88
  5. Step 5: Solve for x
    x = 106,336,975.88/14,219.50
  6. Step 6: Final answer
    x = 7,478.25

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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.