Home / 13,603.19-18,773.73-8,303.36

Finding the Fourth Proportional to 13,603.19, 18,773.73 and 8,303.36

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Solution

The fourth proportional to 13,603.19, 18,773.73 and 8,303.36 is: 11,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.19 : 18,773.73 = 8,303.36 : x
  2. Step 2: Convert to fraction form
    13,603.19/18,773.73 = 8,303.36/x
  3. Step 3: Cross multiply
    13,603.19x = 18,773.73 × 8,303.36
  4. Step 4: Simplify right side
    13,603.19x = 155,884,944.86
  5. Step 5: Solve for x
    x = 155,884,944.86/13,603.19
  6. Step 6: Final answer
    x = 11,459.44

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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.