Home / 13,501.16-20,260.78-5,603.69

Finding the Fourth Proportional to 13,501.16, 20,260.78 and 5,603.69

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Solution

The fourth proportional to 13,501.16, 20,260.78 and 5,603.69 is: 8,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501.16 : 20,260.78 = 5,603.69 : x
  2. Step 2: Convert to fraction form
    13,501.16/20,260.78 = 5,603.69/x
  3. Step 3: Cross multiply
    13,501.16x = 20,260.78 × 5,603.69
  4. Step 4: Simplify right side
    13,501.16x = 113,535,014.97
  5. Step 5: Solve for x
    x = 113,535,014.97/13,501.16
  6. Step 6: Final answer
    x = 8,409.28

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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.