Home / 19,869.24-27,421.46-11,369.67

Finding the Fourth Proportional to 19,869.24, 27,421.46 and 11,369.67

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Solution

The fourth proportional to 19,869.24, 27,421.46 and 11,369.67 is: 15,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.24 : 27,421.46 = 11,369.67 : x
  2. Step 2: Convert to fraction form
    19,869.24/27,421.46 = 11,369.67/x
  3. Step 3: Cross multiply
    19,869.24x = 27,421.46 × 11,369.67
  4. Step 4: Simplify right side
    19,869.24x = 311,772,894.27
  5. Step 5: Solve for x
    x = 311,772,894.27/19,869.24
  6. Step 6: Final answer
    x = 15,691.23

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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.