Home / 13,271.11-18,314.16-7,303.14

Finding the Fourth Proportional to 13,271.11, 18,314.16 and 7,303.14

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Solution

The fourth proportional to 13,271.11, 18,314.16 and 7,303.14 is: 10,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.11 : 18,314.16 = 7,303.14 : x
  2. Step 2: Convert to fraction form
    13,271.11/18,314.16 = 7,303.14/x
  3. Step 3: Cross multiply
    13,271.11x = 18,314.16 × 7,303.14
  4. Step 4: Simplify right side
    13,271.11x = 133,750,874.46
  5. Step 5: Solve for x
    x = 133,750,874.46/13,271.11
  6. Step 6: Final answer
    x = 10,078.35

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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.