Home / 16,638.40-24,958.80-5,239.35

Finding the Fourth Proportional to 16,638.40, 24,958.80 and 5,239.35

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Solution

The fourth proportional to 16,638.40, 24,958.80 and 5,239.35 is: 7,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.40 : 24,958.80 = 5,239.35 : x
  2. Step 2: Convert to fraction form
    16,638.40/24,958.80 = 5,239.35/x
  3. Step 3: Cross multiply
    16,638.40x = 24,958.80 × 5,239.35
  4. Step 4: Simplify right side
    16,638.40x = 130,767,888.78
  5. Step 5: Solve for x
    x = 130,767,888.78/16,638.40
  6. Step 6: Final answer
    x = 7,859.40

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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.