Home / 14,475.40-21,702.60-9,783.80

Finding the Fourth Proportional to 14,475.40, 21,702.60 and 9,783.80

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Solution

The fourth proportional to 14,475.40, 21,702.60 and 9,783.80 is: 14,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.40 : 21,702.60 = 9,783.80 : x
  2. Step 2: Convert to fraction form
    14,475.40/21,702.60 = 9,783.80/x
  3. Step 3: Cross multiply
    14,475.40x = 21,702.60 × 9,783.80
  4. Step 4: Simplify right side
    14,475.40x = 212,333,897.88
  5. Step 5: Solve for x
    x = 212,333,897.88/14,475.40
  6. Step 6: Final answer
    x = 14,668.60

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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.