Home / 13,343.81-20,018.61-4,578.93

Finding the Fourth Proportional to 13,343.81, 20,018.61 and 4,578.93

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Solution

The fourth proportional to 13,343.81, 20,018.61 and 4,578.93 is: 6,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.81 : 20,018.61 = 4,578.93 : x
  2. Step 2: Convert to fraction form
    13,343.81/20,018.61 = 4,578.93/x
  3. Step 3: Cross multiply
    13,343.81x = 20,018.61 × 4,578.93
  4. Step 4: Simplify right side
    13,343.81x = 91,663,813.89
  5. Step 5: Solve for x
    x = 91,663,813.89/13,343.81
  6. Step 6: Final answer
    x = 6,869.39

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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.