Home / 18,637.70-25,720.23-10,139.87

Finding the Fourth Proportional to 18,637.70, 25,720.23 and 10,139.87

Calculator

Solution

The fourth proportional to 18,637.70, 25,720.23 and 10,139.87 is: 13,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.70 : 25,720.23 = 10,139.87 : x
  2. Step 2: Convert to fraction form
    18,637.70/25,720.23 = 10,139.87/x
  3. Step 3: Cross multiply
    18,637.70x = 25,720.23 × 10,139.87
  4. Step 4: Simplify right side
    18,637.70x = 260,799,788.57
  5. Step 5: Solve for x
    x = 260,799,788.57/18,637.70
  6. Step 6: Final answer
    x = 13,993.13

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.