Home / 13,284.64-18,312.77-10,922.68

Finding the Fourth Proportional to 13,284.64, 18,312.77 and 10,922.68

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Solution

The fourth proportional to 13,284.64, 18,312.77 and 10,922.68 is: 15,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.64 : 18,312.77 = 10,922.68 : x
  2. Step 2: Convert to fraction form
    13,284.64/18,312.77 = 10,922.68/x
  3. Step 3: Cross multiply
    13,284.64x = 18,312.77 × 10,922.68
  4. Step 4: Simplify right side
    13,284.64x = 200,024,380.45
  5. Step 5: Solve for x
    x = 200,024,380.45/13,284.64
  6. Step 6: Final answer
    x = 15,056.82

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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.