Home / 15,628.77-21,566.86-8,553.82

Finding the Fourth Proportional to 15,628.77, 21,566.86 and 8,553.82

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Solution

The fourth proportional to 15,628.77, 21,566.86 and 8,553.82 is: 11,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.77 : 21,566.86 = 8,553.82 : x
  2. Step 2: Convert to fraction form
    15,628.77/21,566.86 = 8,553.82/x
  3. Step 3: Cross multiply
    15,628.77x = 21,566.86 × 8,553.82
  4. Step 4: Simplify right side
    15,628.77x = 184,479,038.41
  5. Step 5: Solve for x
    x = 184,479,038.41/15,628.77
  6. Step 6: Final answer
    x = 11,803.81

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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.