Home / 12,609.23-18,889.20-9,271.31

Finding the Fourth Proportional to 12,609.23, 18,889.20 and 9,271.31

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Solution

The fourth proportional to 12,609.23, 18,889.20 and 9,271.31 is: 13,888.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.23 : 18,889.20 = 9,271.31 : x
  2. Step 2: Convert to fraction form
    12,609.23/18,889.20 = 9,271.31/x
  3. Step 3: Cross multiply
    12,609.23x = 18,889.20 × 9,271.31
  4. Step 4: Simplify right side
    12,609.23x = 175,127,534.41
  5. Step 5: Solve for x
    x = 175,127,534.41/12,609.23
  6. Step 6: Final answer
    x = 13,888.84

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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.