Home / 19,180.18-28,762.71-9,316.54

Finding the Fourth Proportional to 19,180.18, 28,762.71 and 9,316.54

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Solution

The fourth proportional to 19,180.18, 28,762.71 and 9,316.54 is: 13,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.18 : 28,762.71 = 9,316.54 : x
  2. Step 2: Convert to fraction form
    19,180.18/28,762.71 = 9,316.54/x
  3. Step 3: Cross multiply
    19,180.18x = 28,762.71 × 9,316.54
  4. Step 4: Simplify right side
    19,180.18x = 267,968,938.22
  5. Step 5: Solve for x
    x = 267,968,938.22/19,180.18
  6. Step 6: Final answer
    x = 13,971.14

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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.