Home / 9,966.40-14,949.60-4,782.40

Finding the Fourth Proportional to 9,966.40, 14,949.60 and 4,782.40

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Solution

The fourth proportional to 9,966.40, 14,949.60 and 4,782.40 is: 7,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.40 : 14,949.60 = 4,782.40 : x
  2. Step 2: Convert to fraction form
    9,966.40/14,949.60 = 4,782.40/x
  3. Step 3: Cross multiply
    9,966.40x = 14,949.60 × 4,782.40
  4. Step 4: Simplify right side
    9,966.40x = 71,494,967.04
  5. Step 5: Solve for x
    x = 71,494,967.04/9,966.40
  6. Step 6: Final answer
    x = 7,173.60

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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.