Home / 18,574.65-25,632.45-13,278.33

Finding the Fourth Proportional to 18,574.65, 25,632.45 and 13,278.33

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Solution

The fourth proportional to 18,574.65, 25,632.45 and 13,278.33 is: 18,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.65 : 25,632.45 = 13,278.33 : x
  2. Step 2: Convert to fraction form
    18,574.65/25,632.45 = 13,278.33/x
  3. Step 3: Cross multiply
    18,574.65x = 25,632.45 × 13,278.33
  4. Step 4: Simplify right side
    18,574.65x = 340,356,129.81
  5. Step 5: Solve for x
    x = 340,356,129.81/18,574.65
  6. Step 6: Final answer
    x = 18,323.69

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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.