Home / 10,877.45-15,010.58-6,401.46

Finding the Fourth Proportional to 10,877.45, 15,010.58 and 6,401.46

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Solution

The fourth proportional to 10,877.45, 15,010.58 and 6,401.46 is: 8,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.45 : 15,010.58 = 6,401.46 : x
  2. Step 2: Convert to fraction form
    10,877.45/15,010.58 = 6,401.46/x
  3. Step 3: Cross multiply
    10,877.45x = 15,010.58 × 6,401.46
  4. Step 4: Simplify right side
    10,877.45x = 96,089,643.45
  5. Step 5: Solve for x
    x = 96,089,643.45/10,877.45
  6. Step 6: Final answer
    x = 8,833.84

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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.