Home / 8,711.02-13,075.76-5,426.43

Finding the Fourth Proportional to 8,711.02, 13,075.76 and 5,426.43

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Solution

The fourth proportional to 8,711.02, 13,075.76 and 5,426.43 is: 8,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.02 : 13,075.76 = 5,426.43 : x
  2. Step 2: Convert to fraction form
    8,711.02/13,075.76 = 5,426.43/x
  3. Step 3: Cross multiply
    8,711.02x = 13,075.76 × 5,426.43
  4. Step 4: Simplify right side
    8,711.02x = 70,954,696.34
  5. Step 5: Solve for x
    x = 70,954,696.34/8,711.02
  6. Step 6: Final answer
    x = 8,145.39

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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.