Home / 8,946.16-12,351.84-5,415.58

Finding the Fourth Proportional to 8,946.16, 12,351.84 and 5,415.58

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Solution

The fourth proportional to 8,946.16, 12,351.84 and 5,415.58 is: 7,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.16 : 12,351.84 = 5,415.58 : x
  2. Step 2: Convert to fraction form
    8,946.16/12,351.84 = 5,415.58/x
  3. Step 3: Cross multiply
    8,946.16x = 12,351.84 × 5,415.58
  4. Step 4: Simplify right side
    8,946.16x = 66,892,377.67
  5. Step 5: Solve for x
    x = 66,892,377.67/8,946.16
  6. Step 6: Final answer
    x = 7,477.22

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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.