Home / 18,130.09-25,019.96-10,172.90

Finding the Fourth Proportional to 18,130.09, 25,019.96 and 10,172.90

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Solution

The fourth proportional to 18,130.09, 25,019.96 and 10,172.90 is: 14,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.09 : 25,019.96 = 10,172.90 : x
  2. Step 2: Convert to fraction form
    18,130.09/25,019.96 = 10,172.90/x
  3. Step 3: Cross multiply
    18,130.09x = 25,019.96 × 10,172.90
  4. Step 4: Simplify right side
    18,130.09x = 254,525,492.40
  5. Step 5: Solve for x
    x = 254,525,492.40/18,130.09
  6. Step 6: Final answer
    x = 14,038.85

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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.