Home / 16,378.32-22,632.75-13,393.02

Finding the Fourth Proportional to 16,378.32, 22,632.75 and 13,393.02

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Solution

The fourth proportional to 16,378.32, 22,632.75 and 13,393.02 is: 18,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,378.32 : 22,632.75 = 13,393.02 : x
  2. Step 2: Convert to fraction form
    16,378.32/22,632.75 = 13,393.02/x
  3. Step 3: Cross multiply
    16,378.32x = 22,632.75 × 13,393.02
  4. Step 4: Simplify right side
    16,378.32x = 303,120,873.41
  5. Step 5: Solve for x
    x = 303,120,873.41/16,378.32
  6. Step 6: Final answer
    x = 18,507.45

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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.