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Finding the Fourth Proportional to 9,430.90, 14,136.90 and 4,743.70

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Solution

The fourth proportional to 9,430.90, 14,136.90 and 4,743.70 is: 7,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.90 : 14,136.90 = 4,743.70 : x
  2. Step 2: Convert to fraction form
    9,430.90/14,136.90 = 4,743.70/x
  3. Step 3: Cross multiply
    9,430.90x = 14,136.90 × 4,743.70
  4. Step 4: Simplify right side
    9,430.90x = 67,061,212.53
  5. Step 5: Solve for x
    x = 67,061,212.53/9,430.90
  6. Step 6: Final answer
    x = 7,110.80

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1.5x scale

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.