Home / 9,626.78-13,291.08-7,862.60

Finding the Fourth Proportional to 9,626.78, 13,291.08 and 7,862.60

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Solution

The fourth proportional to 9,626.78, 13,291.08 and 7,862.60 is: 10,855.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,626.78 : 13,291.08 = 7,862.60 : x
  2. Step 2: Convert to fraction form
    9,626.78/13,291.08 = 7,862.60/x
  3. Step 3: Cross multiply
    9,626.78x = 13,291.08 × 7,862.60
  4. Step 4: Simplify right side
    9,626.78x = 104,502,445.61
  5. Step 5: Solve for x
    x = 104,502,445.61/9,626.78
  6. Step 6: Final answer
    x = 10,855.39

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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.