Home / 15,669.40-23,525.70-12,386.20

Finding the Fourth Proportional to 15,669.40, 23,525.70 and 12,386.20

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Solution

The fourth proportional to 15,669.40, 23,525.70 and 12,386.20 is: 18,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669.40 : 23,525.70 = 12,386.20 : x
  2. Step 2: Convert to fraction form
    15,669.40/23,525.70 = 12,386.20/x
  3. Step 3: Cross multiply
    15,669.40x = 23,525.70 × 12,386.20
  4. Step 4: Simplify right side
    15,669.40x = 291,394,025.34
  5. Step 5: Solve for x
    x = 291,394,025.34/15,669.40
  6. Step 6: Final answer
    x = 18,596.37

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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.