Home / 18,307.36-25,256.40-10,853.92

Finding the Fourth Proportional to 18,307.36, 25,256.40 and 10,853.92

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Solution

The fourth proportional to 18,307.36, 25,256.40 and 10,853.92 is: 14,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.36 : 25,256.40 = 10,853.92 : x
  2. Step 2: Convert to fraction form
    18,307.36/25,256.40 = 10,853.92/x
  3. Step 3: Cross multiply
    18,307.36x = 25,256.40 × 10,853.92
  4. Step 4: Simplify right side
    18,307.36x = 274,130,945.09
  5. Step 5: Solve for x
    x = 274,130,945.09/18,307.36
  6. Step 6: Final answer
    x = 14,973.81

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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.