Home / 18,346.93-25,318.86-10,390.71

Finding the Fourth Proportional to 18,346.93, 25,318.86 and 10,390.71

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Solution

The fourth proportional to 18,346.93, 25,318.86 and 10,390.71 is: 14,339.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.93 : 25,318.86 = 10,390.71 : x
  2. Step 2: Convert to fraction form
    18,346.93/25,318.86 = 10,390.71/x
  3. Step 3: Cross multiply
    18,346.93x = 25,318.86 × 10,390.71
  4. Step 4: Simplify right side
    18,346.93x = 263,080,931.79
  5. Step 5: Solve for x
    x = 263,080,931.79/18,346.93
  6. Step 6: Final answer
    x = 14,339.23

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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.