Home / 13,288.64-18,318.28-10,926.68

Finding the Fourth Proportional to 13,288.64, 18,318.28 and 10,926.68

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Solution

The fourth proportional to 13,288.64, 18,318.28 and 10,926.68 is: 15,062.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.64 : 18,318.28 = 10,926.68 : x
  2. Step 2: Convert to fraction form
    13,288.64/18,318.28 = 10,926.68/x
  3. Step 3: Cross multiply
    13,288.64x = 18,318.28 × 10,926.68
  4. Step 4: Simplify right side
    13,288.64x = 200,157,983.71
  5. Step 5: Solve for x
    x = 200,157,983.71/13,288.64
  6. Step 6: Final answer
    x = 15,062.34

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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.