Home / 15,219.06-21,002.85-8,933.46

Finding the Fourth Proportional to 15,219.06, 21,002.85 and 8,933.46

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Solution

The fourth proportional to 15,219.06, 21,002.85 and 8,933.46 is: 12,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.06 : 21,002.85 = 8,933.46 : x
  2. Step 2: Convert to fraction form
    15,219.06/21,002.85 = 8,933.46/x
  3. Step 3: Cross multiply
    15,219.06x = 21,002.85 × 8,933.46
  4. Step 4: Simplify right side
    15,219.06x = 187,628,120.36
  5. Step 5: Solve for x
    x = 187,628,120.36/15,219.06
  6. Step 6: Final answer
    x = 12,328.50

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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.