Home / 10,859.80-16,288.02-4,290.52

Finding the Fourth Proportional to 10,859.80, 16,288.02 and 4,290.52

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Solution

The fourth proportional to 10,859.80, 16,288.02 and 4,290.52 is: 6,435.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.80 : 16,288.02 = 4,290.52 : x
  2. Step 2: Convert to fraction form
    10,859.80/16,288.02 = 4,290.52/x
  3. Step 3: Cross multiply
    10,859.80x = 16,288.02 × 4,290.52
  4. Step 4: Simplify right side
    10,859.80x = 69,884,075.57
  5. Step 5: Solve for x
    x = 69,884,075.57/10,859.80
  6. Step 6: Final answer
    x = 6,435.12

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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.