Home / 19,278.36-28,915.02-6,130.80

Finding the Fourth Proportional to 19,278.36, 28,915.02 and 6,130.80

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Solution

The fourth proportional to 19,278.36, 28,915.02 and 6,130.80 is: 9,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.36 : 28,915.02 = 6,130.80 : x
  2. Step 2: Convert to fraction form
    19,278.36/28,915.02 = 6,130.80/x
  3. Step 3: Cross multiply
    19,278.36x = 28,915.02 × 6,130.80
  4. Step 4: Simplify right side
    19,278.36x = 177,272,204.62
  5. Step 5: Solve for x
    x = 177,272,204.62/19,278.36
  6. Step 6: Final answer
    x = 9,195.40

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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.