Home / 13,669.12-18,863.16-7,701.36

Finding the Fourth Proportional to 13,669.12, 18,863.16 and 7,701.36

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Solution

The fourth proportional to 13,669.12, 18,863.16 and 7,701.36 is: 10,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.12 : 18,863.16 = 7,701.36 : x
  2. Step 2: Convert to fraction form
    13,669.12/18,863.16 = 7,701.36/x
  3. Step 3: Cross multiply
    13,669.12x = 18,863.16 × 7,701.36
  4. Step 4: Simplify right side
    13,669.12x = 145,271,985.90
  5. Step 5: Solve for x
    x = 145,271,985.90/13,669.12
  6. Step 6: Final answer
    x = 10,627.75

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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.