Home / 16,148.32-22,284.78-9,772.80

Finding the Fourth Proportional to 16,148.32, 22,284.78 and 9,772.80

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Solution

The fourth proportional to 16,148.32, 22,284.78 and 9,772.80 is: 13,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,148.32 : 22,284.78 = 9,772.80 : x
  2. Step 2: Convert to fraction form
    16,148.32/22,284.78 = 9,772.80/x
  3. Step 3: Cross multiply
    16,148.32x = 22,284.78 × 9,772.80
  4. Step 4: Simplify right side
    16,148.32x = 217,784,697.98
  5. Step 5: Solve for x
    x = 217,784,697.98/16,148.32
  6. Step 6: Final answer
    x = 13,486.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.