Home / 10,656.96-15,962.21-8,787.07

Finding the Fourth Proportional to 10,656.96, 15,962.21 and 8,787.07

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Solution

The fourth proportional to 10,656.96, 15,962.21 and 8,787.07 is: 13,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.96 : 15,962.21 = 8,787.07 : x
  2. Step 2: Convert to fraction form
    10,656.96/15,962.21 = 8,787.07/x
  3. Step 3: Cross multiply
    10,656.96x = 15,962.21 × 8,787.07
  4. Step 4: Simplify right side
    10,656.96x = 140,261,056.62
  5. Step 5: Solve for x
    x = 140,261,056.62/10,656.96
  6. Step 6: Final answer
    x = 13,161.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.