Home / 14,143.04-21,192.96-7,900.64

Finding the Fourth Proportional to 14,143.04, 21,192.96 and 7,900.64

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Solution

The fourth proportional to 14,143.04, 21,192.96 and 7,900.64 is: 11,838.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.04 : 21,192.96 = 7,900.64 : x
  2. Step 2: Convert to fraction form
    14,143.04/21,192.96 = 7,900.64/x
  3. Step 3: Cross multiply
    14,143.04x = 21,192.96 × 7,900.64
  4. Step 4: Simplify right side
    14,143.04x = 167,437,947.49
  5. Step 5: Solve for x
    x = 167,437,947.49/14,143.04
  6. Step 6: Final answer
    x = 11,838.89

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1.5x scale

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.