Home / 9,621.64-14,435-4,075.21

Finding the Fourth Proportional to 9,621.64, 14,435 and 4,075.21

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Solution

The fourth proportional to 9,621.64, 14,435 and 4,075.21 is: 6,113.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.64 : 14,435 = 4,075.21 : x
  2. Step 2: Convert to fraction form
    9,621.64/14,435 = 4,075.21/x
  3. Step 3: Cross multiply
    9,621.64x = 14,435 × 4,075.21
  4. Step 4: Simplify right side
    9,621.64x = 58,825,656.35
  5. Step 5: Solve for x
    x = 58,825,656.35/9,621.64
  6. Step 6: Final answer
    x = 6,113.89

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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.