Home / 13,501.60-18,604.56-9,959.20

Finding the Fourth Proportional to 13,501.60, 18,604.56 and 9,959.20

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Solution

The fourth proportional to 13,501.60, 18,604.56 and 9,959.20 is: 13,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.60 : 18,604.56 = 9,959.20 : x
  2. Step 2: Convert to fraction form
    13,501.60/18,604.56 = 9,959.20/x
  3. Step 3: Cross multiply
    13,501.60x = 18,604.56 × 9,959.20
  4. Step 4: Simplify right side
    13,501.60x = 185,286,533.95
  5. Step 5: Solve for x
    x = 185,286,533.95/13,501.60
  6. Step 6: Final answer
    x = 13,723.30

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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.