Home / 18,434.99-25,438.02-11,268.51

Finding the Fourth Proportional to 18,434.99, 25,438.02 and 11,268.51

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Solution

The fourth proportional to 18,434.99, 25,438.02 and 11,268.51 is: 15,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.99 : 25,438.02 = 11,268.51 : x
  2. Step 2: Convert to fraction form
    18,434.99/25,438.02 = 11,268.51/x
  3. Step 3: Cross multiply
    18,434.99x = 25,438.02 × 11,268.51
  4. Step 4: Simplify right side
    18,434.99x = 286,648,582.75
  5. Step 5: Solve for x
    x = 286,648,582.75/18,434.99
  6. Step 6: Final answer
    x = 15,549.16

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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.