Home / 13,258.08-18,295.47-7,289.60

Finding the Fourth Proportional to 13,258.08, 18,295.47 and 7,289.60

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Solution

The fourth proportional to 13,258.08, 18,295.47 and 7,289.60 is: 10,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.08 : 18,295.47 = 7,289.60 : x
  2. Step 2: Convert to fraction form
    13,258.08/18,295.47 = 7,289.60/x
  3. Step 3: Cross multiply
    13,258.08x = 18,295.47 × 7,289.60
  4. Step 4: Simplify right side
    13,258.08x = 133,366,566.63
  5. Step 5: Solve for x
    x = 133,366,566.63/13,258.08
  6. Step 6: Final answer
    x = 10,059.27

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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.