Home / 12,317.40-18,421.20-9,027.18

Finding the Fourth Proportional to 12,317.40, 18,421.20 and 9,027.18

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Solution

The fourth proportional to 12,317.40, 18,421.20 and 9,027.18 is: 13,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.40 : 18,421.20 = 9,027.18 : x
  2. Step 2: Convert to fraction form
    12,317.40/18,421.20 = 9,027.18/x
  3. Step 3: Cross multiply
    12,317.40x = 18,421.20 × 9,027.18
  4. Step 4: Simplify right side
    12,317.40x = 166,291,488.22
  5. Step 5: Solve for x
    x = 166,291,488.22/12,317.40
  6. Step 6: Final answer
    x = 13,500.53

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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.