Home / 9,618.97-13,270.45-5,638.63

Finding the Fourth Proportional to 9,618.97, 13,270.45 and 5,638.63

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Solution

The fourth proportional to 9,618.97, 13,270.45 and 5,638.63 is: 7,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,618.97 : 13,270.45 = 5,638.63 : x
  2. Step 2: Convert to fraction form
    9,618.97/13,270.45 = 5,638.63/x
  3. Step 3: Cross multiply
    9,618.97x = 13,270.45 × 5,638.63
  4. Step 4: Simplify right side
    9,618.97x = 74,827,157.48
  5. Step 5: Solve for x
    x = 74,827,157.48/9,618.97
  6. Step 6: Final answer
    x = 7,779.12

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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.