Home / 19,147.56-28,725.93-9,275.30

Finding the Fourth Proportional to 19,147.56, 28,725.93 and 9,275.30

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Solution

The fourth proportional to 19,147.56, 28,725.93 and 9,275.30 is: 13,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.56 : 28,725.93 = 9,275.30 : x
  2. Step 2: Convert to fraction form
    19,147.56/28,725.93 = 9,275.30/x
  3. Step 3: Cross multiply
    19,147.56x = 28,725.93 × 9,275.30
  4. Step 4: Simplify right side
    19,147.56x = 266,441,618.53
  5. Step 5: Solve for x
    x = 266,441,618.53/19,147.56
  6. Step 6: Final answer
    x = 13,915.17

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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.