Home / 14,038.81-21,059.37-4,178.11

Finding the Fourth Proportional to 14,038.81, 21,059.37 and 4,178.11

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Solution

The fourth proportional to 14,038.81, 21,059.37 and 4,178.11 is: 6,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.81 : 21,059.37 = 4,178.11 : x
  2. Step 2: Convert to fraction form
    14,038.81/21,059.37 = 4,178.11/x
  3. Step 3: Cross multiply
    14,038.81x = 21,059.37 × 4,178.11
  4. Step 4: Simplify right side
    14,038.81x = 87,988,364.39
  5. Step 5: Solve for x
    x = 87,988,364.39/14,038.81
  6. Step 6: Final answer
    x = 6,267.51

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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.