Home / 13,439.54-20,159.59-4,890.69

Finding the Fourth Proportional to 13,439.54, 20,159.59 and 4,890.69

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Solution

The fourth proportional to 13,439.54, 20,159.59 and 4,890.69 is: 7,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.54 : 20,159.59 = 4,890.69 : x
  2. Step 2: Convert to fraction form
    13,439.54/20,159.59 = 4,890.69/x
  3. Step 3: Cross multiply
    13,439.54x = 20,159.59 × 4,890.69
  4. Step 4: Simplify right side
    13,439.54x = 98,594,349.50
  5. Step 5: Solve for x
    x = 98,594,349.50/13,439.54
  6. Step 6: Final answer
    x = 7,336.14

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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.