Home / 8,715.96-13,075.02-2,876.40

Finding the Fourth Proportional to 8,715.96, 13,075.02 and 2,876.40

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Solution

The fourth proportional to 8,715.96, 13,075.02 and 2,876.40 is: 4,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.96 : 13,075.02 = 2,876.40 : x
  2. Step 2: Convert to fraction form
    8,715.96/13,075.02 = 2,876.40/x
  3. Step 3: Cross multiply
    8,715.96x = 13,075.02 × 2,876.40
  4. Step 4: Simplify right side
    8,715.96x = 37,608,987.53
  5. Step 5: Solve for x
    x = 37,608,987.53/8,715.96
  6. Step 6: Final answer
    x = 4,314.96

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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.