Home / 14,187.98-21,295.10-7,172.94

Finding the Fourth Proportional to 14,187.98, 21,295.10 and 7,172.94

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Solution

The fourth proportional to 14,187.98, 21,295.10 and 7,172.94 is: 10,766.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.98 : 21,295.10 = 7,172.94 : x
  2. Step 2: Convert to fraction form
    14,187.98/21,295.10 = 7,172.94/x
  3. Step 3: Cross multiply
    14,187.98x = 21,295.10 × 7,172.94
  4. Step 4: Simplify right side
    14,187.98x = 152,748,572.38
  5. Step 5: Solve for x
    x = 152,748,572.38/14,187.98
  6. Step 6: Final answer
    x = 10,766.05

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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.