Home / 13,284.64-18,330.94-7,905.52

Finding the Fourth Proportional to 13,284.64, 18,330.94 and 7,905.52

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Solution

The fourth proportional to 13,284.64, 18,330.94 and 7,905.52 is: 10,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.64 : 18,330.94 = 7,905.52 : x
  2. Step 2: Convert to fraction form
    13,284.64/18,330.94 = 7,905.52/x
  3. Step 3: Cross multiply
    13,284.64x = 18,330.94 × 7,905.52
  4. Step 4: Simplify right side
    13,284.64x = 144,915,612.79
  5. Step 5: Solve for x
    x = 144,915,612.79/13,284.64
  6. Step 6: Final answer
    x = 10,908.51

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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.