Home / 13,516.29-20,281.71-5,624.25

Finding the Fourth Proportional to 13,516.29, 20,281.71 and 5,624.25

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Solution

The fourth proportional to 13,516.29, 20,281.71 and 5,624.25 is: 8,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.29 : 20,281.71 = 5,624.25 : x
  2. Step 2: Convert to fraction form
    13,516.29/20,281.71 = 5,624.25/x
  3. Step 3: Cross multiply
    13,516.29x = 20,281.71 × 5,624.25
  4. Step 4: Simplify right side
    13,516.29x = 114,069,407.47
  5. Step 5: Solve for x
    x = 114,069,407.47/13,516.29
  6. Step 6: Final answer
    x = 8,439.40

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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.