Home / 14,231.19-19,637.63-7,857.37

Finding the Fourth Proportional to 14,231.19, 19,637.63 and 7,857.37

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Solution

The fourth proportional to 14,231.19, 19,637.63 and 7,857.37 is: 10,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.19 : 19,637.63 = 7,857.37 : x
  2. Step 2: Convert to fraction form
    14,231.19/19,637.63 = 7,857.37/x
  3. Step 3: Cross multiply
    14,231.19x = 19,637.63 × 7,857.37
  4. Step 4: Simplify right side
    14,231.19x = 154,300,124.83
  5. Step 5: Solve for x
    x = 154,300,124.83/14,231.19
  6. Step 6: Final answer
    x = 10,842.39

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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.