Home / 8,699.13-13,047.35-2,855.70

Finding the Fourth Proportional to 8,699.13, 13,047.35 and 2,855.70

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Solution

The fourth proportional to 8,699.13, 13,047.35 and 2,855.70 is: 4,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.13 : 13,047.35 = 2,855.70 : x
  2. Step 2: Convert to fraction form
    8,699.13/13,047.35 = 2,855.70/x
  3. Step 3: Cross multiply
    8,699.13x = 13,047.35 × 2,855.70
  4. Step 4: Simplify right side
    8,699.13x = 37,259,303.12
  5. Step 5: Solve for x
    x = 37,259,303.12/8,699.13
  6. Step 6: Final answer
    x = 4,283.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.