Home / 18,637.68-25,720.01-10,684.53

Finding the Fourth Proportional to 18,637.68, 25,720.01 and 10,684.53

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Solution

The fourth proportional to 18,637.68, 25,720.01 and 10,684.53 is: 14,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.68 : 25,720.01 = 10,684.53 : x
  2. Step 2: Convert to fraction form
    18,637.68/25,720.01 = 10,684.53/x
  3. Step 3: Cross multiply
    18,637.68x = 25,720.01 × 10,684.53
  4. Step 4: Simplify right side
    18,637.68x = 274,806,218.45
  5. Step 5: Solve for x
    x = 274,806,218.45/18,637.68
  6. Step 6: Final answer
    x = 14,744.66

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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.