Home / 13,267.40-18,309.78-7,603.90

Finding the Fourth Proportional to 13,267.40, 18,309.78 and 7,603.90

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Solution

The fourth proportional to 13,267.40, 18,309.78 and 7,603.90 is: 10,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.40 : 18,309.78 = 7,603.90 : x
  2. Step 2: Convert to fraction form
    13,267.40/18,309.78 = 7,603.90/x
  3. Step 3: Cross multiply
    13,267.40x = 18,309.78 × 7,603.90
  4. Step 4: Simplify right side
    13,267.40x = 139,225,690.37
  5. Step 5: Solve for x
    x = 139,225,690.37/13,267.40
  6. Step 6: Final answer
    x = 10,493.82

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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.