Home / 13,578.56-20,368.08-4,344.56

Finding the Fourth Proportional to 13,578.56, 20,368.08 and 4,344.56

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Solution

The fourth proportional to 13,578.56, 20,368.08 and 4,344.56 is: 6,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.56 : 20,368.08 = 4,344.56 : x
  2. Step 2: Convert to fraction form
    13,578.56/20,368.08 = 4,344.56/x
  3. Step 3: Cross multiply
    13,578.56x = 20,368.08 × 4,344.56
  4. Step 4: Simplify right side
    13,578.56x = 88,490,345.64
  5. Step 5: Solve for x
    x = 88,490,345.64/13,578.56
  6. Step 6: Final answer
    x = 6,516.92

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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.