Home / 13,283.21-18,330.63-7,314.68

Finding the Fourth Proportional to 13,283.21, 18,330.63 and 7,314.68

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Solution

The fourth proportional to 13,283.21, 18,330.63 and 7,314.68 is: 10,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.21 : 18,330.63 = 7,314.68 : x
  2. Step 2: Convert to fraction form
    13,283.21/18,330.63 = 7,314.68/x
  3. Step 3: Cross multiply
    13,283.21x = 18,330.63 × 7,314.68
  4. Step 4: Simplify right side
    13,283.21x = 134,082,692.65
  5. Step 5: Solve for x
    x = 134,082,692.65/13,283.21
  6. Step 6: Final answer
    x = 10,094.15

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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.