Home / 10,715.64-16,075.95-3,319.71

Finding the Fourth Proportional to 10,715.64, 16,075.95 and 3,319.71

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Solution

The fourth proportional to 10,715.64, 16,075.95 and 3,319.71 is: 4,980.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.64 : 16,075.95 = 3,319.71 : x
  2. Step 2: Convert to fraction form
    10,715.64/16,075.95 = 3,319.71/x
  3. Step 3: Cross multiply
    10,715.64x = 16,075.95 × 3,319.71
  4. Step 4: Simplify right side
    10,715.64x = 53,367,491.97
  5. Step 5: Solve for x
    x = 53,367,491.97/10,715.64
  6. Step 6: Final answer
    x = 4,980.34

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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.