Home / 13,129.09-19,701.23-5,232.35

Finding the Fourth Proportional to 13,129.09, 19,701.23 and 5,232.35

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Solution

The fourth proportional to 13,129.09, 19,701.23 and 5,232.35 is: 7,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.09 : 19,701.23 = 5,232.35 : x
  2. Step 2: Convert to fraction form
    13,129.09/19,701.23 = 5,232.35/x
  3. Step 3: Cross multiply
    13,129.09x = 19,701.23 × 5,232.35
  4. Step 4: Simplify right side
    13,129.09x = 103,083,643.06
  5. Step 5: Solve for x
    x = 103,083,643.06/13,129.09
  6. Step 6: Final answer
    x = 7,851.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.