Home / 14,915.20-22,345.80-11,815.60

Finding the Fourth Proportional to 14,915.20, 22,345.80 and 11,815.60

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Solution

The fourth proportional to 14,915.20, 22,345.80 and 11,815.60 is: 17,702.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.20 : 22,345.80 = 11,815.60 : x
  2. Step 2: Convert to fraction form
    14,915.20/22,345.80 = 11,815.60/x
  3. Step 3: Cross multiply
    14,915.20x = 22,345.80 × 11,815.60
  4. Step 4: Simplify right side
    14,915.20x = 264,029,034.48
  5. Step 5: Solve for x
    x = 264,029,034.48/14,915.20
  6. Step 6: Final answer
    x = 17,702.01

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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.