Home / 13,583.17-18,745.27-7,917.01

Finding the Fourth Proportional to 13,583.17, 18,745.27 and 7,917.01

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Solution

The fourth proportional to 13,583.17, 18,745.27 and 7,917.01 is: 10,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.17 : 18,745.27 = 7,917.01 : x
  2. Step 2: Convert to fraction form
    13,583.17/18,745.27 = 7,917.01/x
  3. Step 3: Cross multiply
    13,583.17x = 18,745.27 × 7,917.01
  4. Step 4: Simplify right side
    13,583.17x = 148,406,356.73
  5. Step 5: Solve for x
    x = 148,406,356.73/13,583.17
  6. Step 6: Final answer
    x = 10,925.75

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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.