Home / 18,720.23-25,833.51-10,222.02

Finding the Fourth Proportional to 18,720.23, 25,833.51 and 10,222.02

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Solution

The fourth proportional to 18,720.23, 25,833.51 and 10,222.02 is: 14,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.23 : 25,833.51 = 10,222.02 : x
  2. Step 2: Convert to fraction form
    18,720.23/25,833.51 = 10,222.02/x
  3. Step 3: Cross multiply
    18,720.23x = 25,833.51 × 10,222.02
  4. Step 4: Simplify right side
    18,720.23x = 264,070,655.89
  5. Step 5: Solve for x
    x = 264,070,655.89/18,720.23
  6. Step 6: Final answer
    x = 14,106.17

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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.