Home / 18,634.06-25,718.64-10,681.60

Finding the Fourth Proportional to 18,634.06, 25,718.64 and 10,681.60

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Solution

The fourth proportional to 18,634.06, 25,718.64 and 10,681.60 is: 14,742.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.06 : 25,718.64 = 10,681.60 : x
  2. Step 2: Convert to fraction form
    18,634.06/25,718.64 = 10,681.60/x
  3. Step 3: Cross multiply
    18,634.06x = 25,718.64 × 10,681.60
  4. Step 4: Simplify right side
    18,634.06x = 274,716,225.02
  5. Step 5: Solve for x
    x = 274,716,225.02/18,634.06
  6. Step 6: Final answer
    x = 14,742.69

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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.