Home / 15,728.02-21,705.57-9,014.77

Finding the Fourth Proportional to 15,728.02, 21,705.57 and 9,014.77

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Solution

The fourth proportional to 15,728.02, 21,705.57 and 9,014.77 is: 12,440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,728.02 : 21,705.57 = 9,014.77 : x
  2. Step 2: Convert to fraction form
    15,728.02/21,705.57 = 9,014.77/x
  3. Step 3: Cross multiply
    15,728.02x = 21,705.57 × 9,014.77
  4. Step 4: Simplify right side
    15,728.02x = 195,670,687.35
  5. Step 5: Solve for x
    x = 195,670,687.35/15,728.02
  6. Step 6: Final answer
    x = 12,440.90

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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.