Home / 13,284.42-18,332.54-7,979.32

Finding the Fourth Proportional to 13,284.42, 18,332.54 and 7,979.32

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Solution

The fourth proportional to 13,284.42, 18,332.54 and 7,979.32 is: 11,011.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.42 : 18,332.54 = 7,979.32 : x
  2. Step 2: Convert to fraction form
    13,284.42/18,332.54 = 7,979.32/x
  3. Step 3: Cross multiply
    13,284.42x = 18,332.54 × 7,979.32
  4. Step 4: Simplify right side
    13,284.42x = 146,281,203.07
  5. Step 5: Solve for x
    x = 146,281,203.07/13,284.42
  6. Step 6: Final answer
    x = 11,011.49

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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.