Home / 15,216.06-21,000.15-8,929.02

Finding the Fourth Proportional to 15,216.06, 21,000.15 and 8,929.02

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Solution

The fourth proportional to 15,216.06, 21,000.15 and 8,929.02 is: 12,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.06 : 21,000.15 = 8,929.02 : x
  2. Step 2: Convert to fraction form
    15,216.06/21,000.15 = 8,929.02/x
  3. Step 3: Cross multiply
    15,216.06x = 21,000.15 × 8,929.02
  4. Step 4: Simplify right side
    15,216.06x = 187,510,759.35
  5. Step 5: Solve for x
    x = 187,510,759.35/15,216.06
  6. Step 6: Final answer
    x = 12,323.21

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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.