Home / 9,047.20-12,486.80-5,903.36

Finding the Fourth Proportional to 9,047.20, 12,486.80 and 5,903.36

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Solution

The fourth proportional to 9,047.20, 12,486.80 and 5,903.36 is: 8,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047.20 : 12,486.80 = 5,903.36 : x
  2. Step 2: Convert to fraction form
    9,047.20/12,486.80 = 5,903.36/x
  3. Step 3: Cross multiply
    9,047.20x = 12,486.80 × 5,903.36
  4. Step 4: Simplify right side
    9,047.20x = 73,714,075.65
  5. Step 5: Solve for x
    x = 73,714,075.65/9,047.20
  6. Step 6: Final answer
    x = 8,147.72

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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.