Home / 18,791.02-25,931.37-10,407.52

Finding the Fourth Proportional to 18,791.02, 25,931.37 and 10,407.52

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Solution

The fourth proportional to 18,791.02, 25,931.37 and 10,407.52 is: 14,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.02 : 25,931.37 = 10,407.52 : x
  2. Step 2: Convert to fraction form
    18,791.02/25,931.37 = 10,407.52/x
  3. Step 3: Cross multiply
    18,791.02x = 25,931.37 × 10,407.52
  4. Step 4: Simplify right side
    18,791.02x = 269,881,251.90
  5. Step 5: Solve for x
    x = 269,881,251.90/18,791.02
  6. Step 6: Final answer
    x = 14,362.25

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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.