Home / 15,412.94-23,131.56-7,916.19

Finding the Fourth Proportional to 15,412.94, 23,131.56 and 7,916.19

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Solution

The fourth proportional to 15,412.94, 23,131.56 and 7,916.19 is: 11,880.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.94 : 23,131.56 = 7,916.19 : x
  2. Step 2: Convert to fraction form
    15,412.94/23,131.56 = 7,916.19/x
  3. Step 3: Cross multiply
    15,412.94x = 23,131.56 × 7,916.19
  4. Step 4: Simplify right side
    15,412.94x = 183,113,852.49
  5. Step 5: Solve for x
    x = 183,113,852.49/15,412.94
  6. Step 6: Final answer
    x = 11,880.53

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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.