Home / 15,075.15-20,798.11-9,104.64

Finding the Fourth Proportional to 15,075.15, 20,798.11 and 9,104.64

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Solution

The fourth proportional to 15,075.15, 20,798.11 and 9,104.64 is: 12,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.15 : 20,798.11 = 9,104.64 : x
  2. Step 2: Convert to fraction form
    15,075.15/20,798.11 = 9,104.64/x
  3. Step 3: Cross multiply
    15,075.15x = 20,798.11 × 9,104.64
  4. Step 4: Simplify right side
    15,075.15x = 189,359,304.23
  5. Step 5: Solve for x
    x = 189,359,304.23/15,075.15
  6. Step 6: Final answer
    x = 12,561.02

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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.