Home / 13,815.99-19,055.46-9,332.64

Finding the Fourth Proportional to 13,815.99, 19,055.46 and 9,332.64

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Solution

The fourth proportional to 13,815.99, 19,055.46 and 9,332.64 is: 12,871.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.99 : 19,055.46 = 9,332.64 : x
  2. Step 2: Convert to fraction form
    13,815.99/19,055.46 = 9,332.64/x
  3. Step 3: Cross multiply
    13,815.99x = 19,055.46 × 9,332.64
  4. Step 4: Simplify right side
    13,815.99x = 177,837,748.21
  5. Step 5: Solve for x
    x = 177,837,748.21/13,815.99
  6. Step 6: Final answer
    x = 12,871.88

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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.