Home / 8,136.78-11,225.58-5,307.48

Finding the Fourth Proportional to 8,136.78, 11,225.58 and 5,307.48

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Solution

The fourth proportional to 8,136.78, 11,225.58 and 5,307.48 is: 7,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.78 : 11,225.58 = 5,307.48 : x
  2. Step 2: Convert to fraction form
    8,136.78/11,225.58 = 5,307.48/x
  3. Step 3: Cross multiply
    8,136.78x = 11,225.58 × 5,307.48
  4. Step 4: Simplify right side
    8,136.78x = 59,579,541.34
  5. Step 5: Solve for x
    x = 59,579,541.34/8,136.78
  6. Step 6: Final answer
    x = 7,322.25

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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.