Home / 15,315.88-22,970.92-4,219.80

Finding the Fourth Proportional to 15,315.88, 22,970.92 and 4,219.80

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Solution

The fourth proportional to 15,315.88, 22,970.92 and 4,219.80 is: 6,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.88 : 22,970.92 = 4,219.80 : x
  2. Step 2: Convert to fraction form
    15,315.88/22,970.92 = 4,219.80/x
  3. Step 3: Cross multiply
    15,315.88x = 22,970.92 × 4,219.80
  4. Step 4: Simplify right side
    15,315.88x = 96,932,688.22
  5. Step 5: Solve for x
    x = 96,932,688.22/15,315.88
  6. Step 6: Final answer
    x = 6,328.90

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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.