Home / 18,509.03-25,543.07-10,125.53

Finding the Fourth Proportional to 18,509.03, 25,543.07 and 10,125.53

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Solution

The fourth proportional to 18,509.03, 25,543.07 and 10,125.53 is: 13,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.03 : 25,543.07 = 10,125.53 : x
  2. Step 2: Convert to fraction form
    18,509.03/25,543.07 = 10,125.53/x
  3. Step 3: Cross multiply
    18,509.03x = 25,543.07 × 10,125.53
  4. Step 4: Simplify right side
    18,509.03x = 258,637,121.58
  5. Step 5: Solve for x
    x = 258,637,121.58/18,509.03
  6. Step 6: Final answer
    x = 13,973.56

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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.