Home / 10,915.14-16,348.08-7,212.26

Finding the Fourth Proportional to 10,915.14, 16,348.08 and 7,212.26

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Solution

The fourth proportional to 10,915.14, 16,348.08 and 7,212.26 is: 10,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.14 : 16,348.08 = 7,212.26 : x
  2. Step 2: Convert to fraction form
    10,915.14/16,348.08 = 7,212.26/x
  3. Step 3: Cross multiply
    10,915.14x = 16,348.08 × 7,212.26
  4. Step 4: Simplify right side
    10,915.14x = 117,906,603.46
  5. Step 5: Solve for x
    x = 117,906,603.46/10,915.14
  6. Step 6: Final answer
    x = 10,802.12

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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.