Home / 13,265.13-18,308.48-7,603.67

Finding the Fourth Proportional to 13,265.13, 18,308.48 and 7,603.67

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Solution

The fourth proportional to 13,265.13, 18,308.48 and 7,603.67 is: 10,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.13 : 18,308.48 = 7,603.67 : x
  2. Step 2: Convert to fraction form
    13,265.13/18,308.48 = 7,603.67/x
  3. Step 3: Cross multiply
    13,265.13x = 18,308.48 × 7,603.67
  4. Step 4: Simplify right side
    13,265.13x = 139,211,640.12
  5. Step 5: Solve for x
    x = 139,211,640.12/13,265.13
  6. Step 6: Final answer
    x = 10,494.56

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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.