Home / 15,677.55-21,634.93-8,507.31

Finding the Fourth Proportional to 15,677.55, 21,634.93 and 8,507.31

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Solution

The fourth proportional to 15,677.55, 21,634.93 and 8,507.31 is: 11,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.55 : 21,634.93 = 8,507.31 : x
  2. Step 2: Convert to fraction form
    15,677.55/21,634.93 = 8,507.31/x
  3. Step 3: Cross multiply
    15,677.55x = 21,634.93 × 8,507.31
  4. Step 4: Simplify right side
    15,677.55x = 184,055,056.34
  5. Step 5: Solve for x
    x = 184,055,056.34/15,677.55
  6. Step 6: Final answer
    x = 11,740.04

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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.