Home / 9,780.21-13,475.57-6,630.93

Finding the Fourth Proportional to 9,780.21, 13,475.57 and 6,630.93

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Solution

The fourth proportional to 9,780.21, 13,475.57 and 6,630.93 is: 9,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.21 : 13,475.57 = 6,630.93 : x
  2. Step 2: Convert to fraction form
    9,780.21/13,475.57 = 6,630.93/x
  3. Step 3: Cross multiply
    9,780.21x = 13,475.57 × 6,630.93
  4. Step 4: Simplify right side
    9,780.21x = 89,355,528.23
  5. Step 5: Solve for x
    x = 89,355,528.23/9,780.21
  6. Step 6: Final answer
    x = 9,136.36

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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.