Home / 14,962.40-22,443.60-10,815.20

Finding the Fourth Proportional to 14,962.40, 22,443.60 and 10,815.20

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Solution

The fourth proportional to 14,962.40, 22,443.60 and 10,815.20 is: 16,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.40 : 22,443.60 = 10,815.20 : x
  2. Step 2: Convert to fraction form
    14,962.40/22,443.60 = 10,815.20/x
  3. Step 3: Cross multiply
    14,962.40x = 22,443.60 × 10,815.20
  4. Step 4: Simplify right side
    14,962.40x = 242,732,022.72
  5. Step 5: Solve for x
    x = 242,732,022.72/14,962.40
  6. Step 6: Final answer
    x = 16,222.80

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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.