Home / 18,346.81-25,318.69-10,390.58

Finding the Fourth Proportional to 18,346.81, 25,318.69 and 10,390.58

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Solution

The fourth proportional to 18,346.81, 25,318.69 and 10,390.58 is: 14,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.81 : 25,318.69 = 10,390.58 : x
  2. Step 2: Convert to fraction form
    18,346.81/25,318.69 = 10,390.58/x
  3. Step 3: Cross multiply
    18,346.81x = 25,318.69 × 10,390.58
  4. Step 4: Simplify right side
    18,346.81x = 263,075,873.94
  5. Step 5: Solve for x
    x = 263,075,873.94/18,346.81
  6. Step 6: Final answer
    x = 14,339.06

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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.