Home / 13,955.76-20,931.48-4,094.01

Finding the Fourth Proportional to 13,955.76, 20,931.48 and 4,094.01

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Solution

The fourth proportional to 13,955.76, 20,931.48 and 4,094.01 is: 6,140.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.76 : 20,931.48 = 4,094.01 : x
  2. Step 2: Convert to fraction form
    13,955.76/20,931.48 = 4,094.01/x
  3. Step 3: Cross multiply
    13,955.76x = 20,931.48 × 4,094.01
  4. Step 4: Simplify right side
    13,955.76x = 85,693,688.43
  5. Step 5: Solve for x
    x = 85,693,688.43/13,955.76
  6. Step 6: Final answer
    x = 6,140.38

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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.