Home / 18,464.81-25,502.65-13,451.45

Finding the Fourth Proportional to 18,464.81, 25,502.65 and 13,451.45

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Solution

The fourth proportional to 18,464.81, 25,502.65 and 13,451.45 is: 18,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.81 : 25,502.65 = 13,451.45 : x
  2. Step 2: Convert to fraction form
    18,464.81/25,502.65 = 13,451.45/x
  3. Step 3: Cross multiply
    18,464.81x = 25,502.65 × 13,451.45
  4. Step 4: Simplify right side
    18,464.81x = 343,047,460.20
  5. Step 5: Solve for x
    x = 343,047,460.20/18,464.81
  6. Step 6: Final answer
    x = 18,578.45

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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.