Home / 12,291.70-18,437.57-5,267.16

Finding the Fourth Proportional to 12,291.70, 18,437.57 and 5,267.16

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Solution

The fourth proportional to 12,291.70, 18,437.57 and 5,267.16 is: 7,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.70 : 18,437.57 = 5,267.16 : x
  2. Step 2: Convert to fraction form
    12,291.70/18,437.57 = 5,267.16/x
  3. Step 3: Cross multiply
    12,291.70x = 18,437.57 × 5,267.16
  4. Step 4: Simplify right side
    12,291.70x = 97,113,631.20
  5. Step 5: Solve for x
    x = 97,113,631.20/12,291.70
  6. Step 6: Final answer
    x = 7,900.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.