Home / 15,675.12-21,633.48-9,386.28

Finding the Fourth Proportional to 15,675.12, 21,633.48 and 9,386.28

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Solution

The fourth proportional to 15,675.12, 21,633.48 and 9,386.28 is: 12,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.12 : 21,633.48 = 9,386.28 : x
  2. Step 2: Convert to fraction form
    15,675.12/21,633.48 = 9,386.28/x
  3. Step 3: Cross multiply
    15,675.12x = 21,633.48 × 9,386.28
  4. Step 4: Simplify right side
    15,675.12x = 203,057,900.65
  5. Step 5: Solve for x
    x = 203,057,900.65/15,675.12
  6. Step 6: Final answer
    x = 12,954.15

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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.