Home / 13,307.52-18,363.60-7,640.96

Finding the Fourth Proportional to 13,307.52, 18,363.60 and 7,640.96

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Solution

The fourth proportional to 13,307.52, 18,363.60 and 7,640.96 is: 10,544.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.52 : 18,363.60 = 7,640.96 : x
  2. Step 2: Convert to fraction form
    13,307.52/18,363.60 = 7,640.96/x
  3. Step 3: Cross multiply
    13,307.52x = 18,363.60 × 7,640.96
  4. Step 4: Simplify right side
    13,307.52x = 140,315,533.06
  5. Step 5: Solve for x
    x = 140,315,533.06/13,307.52
  6. Step 6: Final answer
    x = 10,544.08

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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.