Home / 13,220.00-18,267.74-9,628.71

Finding the Fourth Proportional to 13,220.00, 18,267.74 and 9,628.71

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Solution

The fourth proportional to 13,220.00, 18,267.74 and 9,628.71 is: 13,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.00 : 18,267.74 = 9,628.71 : x
  2. Step 2: Convert to fraction form
    13,220.00/18,267.74 = 9,628.71/x
  3. Step 3: Cross multiply
    13,220.00x = 18,267.74 × 9,628.71
  4. Step 4: Simplify right side
    13,220.00x = 175,894,690.28
  5. Step 5: Solve for x
    x = 175,894,690.28/13,220.00
  6. Step 6: Final answer
    x = 13,305.20

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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.