Home / 15,075.04-20,805.68-8,362.16

Finding the Fourth Proportional to 15,075.04, 20,805.68 and 8,362.16

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Solution

The fourth proportional to 15,075.04, 20,805.68 and 8,362.16 is: 11,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.04 : 20,805.68 = 8,362.16 : x
  2. Step 2: Convert to fraction form
    15,075.04/20,805.68 = 8,362.16/x
  3. Step 3: Cross multiply
    15,075.04x = 20,805.68 × 8,362.16
  4. Step 4: Simplify right side
    15,075.04x = 173,980,425.07
  5. Step 5: Solve for x
    x = 173,980,425.07/15,075.04
  6. Step 6: Final answer
    x = 11,540.96

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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.