Home / 7,406.50-10,221.93-4,220.95

Finding the Fourth Proportional to 7,406.50, 10,221.93 and 4,220.95

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Solution

The fourth proportional to 7,406.50, 10,221.93 and 4,220.95 is: 5,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,406.50 : 10,221.93 = 4,220.95 : x
  2. Step 2: Convert to fraction form
    7,406.50/10,221.93 = 4,220.95/x
  3. Step 3: Cross multiply
    7,406.50x = 10,221.93 × 4,220.95
  4. Step 4: Simplify right side
    7,406.50x = 43,146,204.32
  5. Step 5: Solve for x
    x = 43,146,204.32/7,406.50
  6. Step 6: Final answer
    x = 5,825.45

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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.