Home / 15,627.21-21,565.54-8,553.63

Finding the Fourth Proportional to 15,627.21, 21,565.54 and 8,553.63

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Solution

The fourth proportional to 15,627.21, 21,565.54 and 8,553.63 is: 11,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.21 : 21,565.54 = 8,553.63 : x
  2. Step 2: Convert to fraction form
    15,627.21/21,565.54 = 8,553.63/x
  3. Step 3: Cross multiply
    15,627.21x = 21,565.54 × 8,553.63
  4. Step 4: Simplify right side
    15,627.21x = 184,463,520.70
  5. Step 5: Solve for x
    x = 184,463,520.70/15,627.21
  6. Step 6: Final answer
    x = 11,804.00

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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.