Home / 13,950.71-19,243.81-9,421.19

Finding the Fourth Proportional to 13,950.71, 19,243.81 and 9,421.19

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Solution

The fourth proportional to 13,950.71, 19,243.81 and 9,421.19 is: 12,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.71 : 19,243.81 = 9,421.19 : x
  2. Step 2: Convert to fraction form
    13,950.71/19,243.81 = 9,421.19/x
  3. Step 3: Cross multiply
    13,950.71x = 19,243.81 × 9,421.19
  4. Step 4: Simplify right side
    13,950.71x = 181,299,590.33
  5. Step 5: Solve for x
    x = 181,299,590.33/13,950.71
  6. Step 6: Final answer
    x = 12,995.72

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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.