Home / 17,376.20-26,064.54-12,487.40

Finding the Fourth Proportional to 17,376.20, 26,064.54 and 12,487.40

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Solution

The fourth proportional to 17,376.20, 26,064.54 and 12,487.40 is: 18,731.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.20 : 26,064.54 = 12,487.40 : x
  2. Step 2: Convert to fraction form
    17,376.20/26,064.54 = 12,487.40/x
  3. Step 3: Cross multiply
    17,376.20x = 26,064.54 × 12,487.40
  4. Step 4: Simplify right side
    17,376.20x = 325,478,336.80
  5. Step 5: Solve for x
    x = 325,478,336.80/17,376.20
  6. Step 6: Final answer
    x = 18,731.27

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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.