Home / 14,165.74-21,248.37-4,931.50

Finding the Fourth Proportional to 14,165.74, 21,248.37 and 4,931.50

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Solution

The fourth proportional to 14,165.74, 21,248.37 and 4,931.50 is: 7,397.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,165.74 : 21,248.37 = 4,931.50 : x
  2. Step 2: Convert to fraction form
    14,165.74/21,248.37 = 4,931.50/x
  3. Step 3: Cross multiply
    14,165.74x = 21,248.37 × 4,931.50
  4. Step 4: Simplify right side
    14,165.74x = 104,786,336.66
  5. Step 5: Solve for x
    x = 104,786,336.66/14,165.74
  6. Step 6: Final answer
    x = 7,397.17

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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.