Home / 7,886.90-11,814.26-4,915.62

Finding the Fourth Proportional to 7,886.90, 11,814.26 and 4,915.62

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Solution

The fourth proportional to 7,886.90, 11,814.26 and 4,915.62 is: 7,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.90 : 11,814.26 = 4,915.62 : x
  2. Step 2: Convert to fraction form
    7,886.90/11,814.26 = 4,915.62/x
  3. Step 3: Cross multiply
    7,886.90x = 11,814.26 × 4,915.62
  4. Step 4: Simplify right side
    7,886.90x = 58,074,388.16
  5. Step 5: Solve for x
    x = 58,074,388.16/7,886.90
  6. Step 6: Final answer
    x = 7,363.40

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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.