Home / 13,805.47-19,028.80-9,767.08

Finding the Fourth Proportional to 13,805.47, 19,028.80 and 9,767.08

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Solution

The fourth proportional to 13,805.47, 19,028.80 and 9,767.08 is: 13,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.47 : 19,028.80 = 9,767.08 : x
  2. Step 2: Convert to fraction form
    13,805.47/19,028.80 = 9,767.08/x
  3. Step 3: Cross multiply
    13,805.47x = 19,028.80 × 9,767.08
  4. Step 4: Simplify right side
    13,805.47x = 185,855,763.07
  5. Step 5: Solve for x
    x = 185,855,763.07/13,805.47
  6. Step 6: Final answer
    x = 13,462.47

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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.