Home / 13,196.58-18,210.75-7,888.26

Finding the Fourth Proportional to 13,196.58, 18,210.75 and 7,888.26

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Solution

The fourth proportional to 13,196.58, 18,210.75 and 7,888.26 is: 10,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,196.58 : 18,210.75 = 7,888.26 : x
  2. Step 2: Convert to fraction form
    13,196.58/18,210.75 = 7,888.26/x
  3. Step 3: Cross multiply
    13,196.58x = 18,210.75 × 7,888.26
  4. Step 4: Simplify right side
    13,196.58x = 143,651,130.80
  5. Step 5: Solve for x
    x = 143,651,130.80/13,196.58
  6. Step 6: Final answer
    x = 10,885.48

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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.