Home / 8,715.80-13,075.16-2,871.08

Finding the Fourth Proportional to 8,715.80, 13,075.16 and 2,871.08

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Solution

The fourth proportional to 8,715.80, 13,075.16 and 2,871.08 is: 4,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.80 : 13,075.16 = 2,871.08 : x
  2. Step 2: Convert to fraction form
    8,715.80/13,075.16 = 2,871.08/x
  3. Step 3: Cross multiply
    8,715.80x = 13,075.16 × 2,871.08
  4. Step 4: Simplify right side
    8,715.80x = 37,539,830.37
  5. Step 5: Solve for x
    x = 37,539,830.37/8,715.80
  6. Step 6: Final answer
    x = 4,307.10

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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.