Home / 14,143.27-19,518.57-7,855.63

Finding the Fourth Proportional to 14,143.27, 19,518.57 and 7,855.63

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Solution

The fourth proportional to 14,143.27, 19,518.57 and 7,855.63 is: 10,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.27 : 19,518.57 = 7,855.63 : x
  2. Step 2: Convert to fraction form
    14,143.27/19,518.57 = 7,855.63/x
  3. Step 3: Cross multiply
    14,143.27x = 19,518.57 × 7,855.63
  4. Step 4: Simplify right side
    14,143.27x = 153,330,664.05
  5. Step 5: Solve for x
    x = 153,330,664.05/14,143.27
  6. Step 6: Final answer
    x = 10,841.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.