Home / 12,968.89-17,875.55-9,187.21

Finding the Fourth Proportional to 12,968.89, 17,875.55 and 9,187.21

Calculator

Solution

The fourth proportional to 12,968.89, 17,875.55 and 9,187.21 is: 12,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.89 : 17,875.55 = 9,187.21 : x
  2. Step 2: Convert to fraction form
    12,968.89/17,875.55 = 9,187.21/x
  3. Step 3: Cross multiply
    12,968.89x = 17,875.55 × 9,187.21
  4. Step 4: Simplify right side
    12,968.89x = 164,226,431.72
  5. Step 5: Solve for x
    x = 164,226,431.72/12,968.89
  6. Step 6: Final answer
    x = 12,663.11

Related Problems

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.