Home / 15,606.96-21,539.60-8,895

Finding the Fourth Proportional to 15,606.96, 21,539.60 and 8,895

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Solution

The fourth proportional to 15,606.96, 21,539.60 and 8,895 is: 12,276.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,606.96 : 21,539.60 = 8,895 : x
  2. Step 2: Convert to fraction form
    15,606.96/21,539.60 = 8,895/x
  3. Step 3: Cross multiply
    15,606.96x = 21,539.60 × 8,895
  4. Step 4: Simplify right side
    15,606.96x = 191,594,697.53
  5. Step 5: Solve for x
    x = 191,594,697.53/15,606.96
  6. Step 6: Final answer
    x = 12,276.23

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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.