Home / 13,205.00-18,222.95-7,155.26

Finding the Fourth Proportional to 13,205.00, 18,222.95 and 7,155.26

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Solution

The fourth proportional to 13,205.00, 18,222.95 and 7,155.26 is: 9,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.00 : 18,222.95 = 7,155.26 : x
  2. Step 2: Convert to fraction form
    13,205.00/18,222.95 = 7,155.26/x
  3. Step 3: Cross multiply
    13,205.00x = 18,222.95 × 7,155.26
  4. Step 4: Simplify right side
    13,205.00x = 130,389,871.99
  5. Step 5: Solve for x
    x = 130,389,871.99/13,205.00
  6. Step 6: Final answer
    x = 9,874.28

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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.