Home / 15,628.02-21,565.83-8,553.07

Finding the Fourth Proportional to 15,628.02, 21,565.83 and 8,553.07

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Solution

The fourth proportional to 15,628.02, 21,565.83 and 8,553.07 is: 11,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.02 : 21,565.83 = 8,553.07 : x
  2. Step 2: Convert to fraction form
    15,628.02/21,565.83 = 8,553.07/x
  3. Step 3: Cross multiply
    15,628.02x = 21,565.83 × 8,553.07
  4. Step 4: Simplify right side
    15,628.02x = 184,454,053.60
  5. Step 5: Solve for x
    x = 184,454,053.60/15,628.02
  6. Step 6: Final answer
    x = 11,802.78

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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.