Home / 15,389.34-23,075.79-7,986.34

Finding the Fourth Proportional to 15,389.34, 23,075.79 and 7,986.34

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Solution

The fourth proportional to 15,389.34, 23,075.79 and 7,986.34 is: 11,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.34 : 23,075.79 = 7,986.34 : x
  2. Step 2: Convert to fraction form
    15,389.34/23,075.79 = 7,986.34/x
  3. Step 3: Cross multiply
    15,389.34x = 23,075.79 × 7,986.34
  4. Step 4: Simplify right side
    15,389.34x = 184,291,104.71
  5. Step 5: Solve for x
    x = 184,291,104.71/15,389.34
  6. Step 6: Final answer
    x = 11,975.25

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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.