Home / 6,603.82-9,113.80-5,421.58

Finding the Fourth Proportional to 6,603.82, 9,113.80 and 5,421.58

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Solution

The fourth proportional to 6,603.82, 9,113.80 and 5,421.58 is: 7,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.82 : 9,113.80 = 5,421.58 : x
  2. Step 2: Convert to fraction form
    6,603.82/9,113.80 = 5,421.58/x
  3. Step 3: Cross multiply
    6,603.82x = 9,113.80 × 5,421.58
  4. Step 4: Simplify right side
    6,603.82x = 49,411,195.80
  5. Step 5: Solve for x
    x = 49,411,195.80/6,603.82
  6. Step 6: Final answer
    x = 7,482.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.