Home / 18,119.68-25,005.88-10,570.90

Finding the Fourth Proportional to 18,119.68, 25,005.88 and 10,570.90

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Solution

The fourth proportional to 18,119.68, 25,005.88 and 10,570.90 is: 14,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.68 : 25,005.88 = 10,570.90 : x
  2. Step 2: Convert to fraction form
    18,119.68/25,005.88 = 10,570.90/x
  3. Step 3: Cross multiply
    18,119.68x = 25,005.88 × 10,570.90
  4. Step 4: Simplify right side
    18,119.68x = 264,334,656.89
  5. Step 5: Solve for x
    x = 264,334,656.89/18,119.68
  6. Step 6: Final answer
    x = 14,588.26

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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.