Home / 10,242.86-14,138.35-6,885.81

Finding the Fourth Proportional to 10,242.86, 14,138.35 and 6,885.81

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Solution

The fourth proportional to 10,242.86, 14,138.35 and 6,885.81 is: 9,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.86 : 14,138.35 = 6,885.81 : x
  2. Step 2: Convert to fraction form
    10,242.86/14,138.35 = 6,885.81/x
  3. Step 3: Cross multiply
    10,242.86x = 14,138.35 × 6,885.81
  4. Step 4: Simplify right side
    10,242.86x = 97,353,974.60
  5. Step 5: Solve for x
    x = 97,353,974.60/10,242.86
  6. Step 6: Final answer
    x = 9,504.57

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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.