Home / 17,818.40-26,720.40-6,125.60

Finding the Fourth Proportional to 17,818.40, 26,720.40 and 6,125.60

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Solution

The fourth proportional to 17,818.40, 26,720.40 and 6,125.60 is: 9,185.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,818.40 : 26,720.40 = 6,125.60 : x
  2. Step 2: Convert to fraction form
    17,818.40/26,720.40 = 6,125.60/x
  3. Step 3: Cross multiply
    17,818.40x = 26,720.40 × 6,125.60
  4. Step 4: Simplify right side
    17,818.40x = 163,678,482.24
  5. Step 5: Solve for x
    x = 163,678,482.24/17,818.40
  6. Step 6: Final answer
    x = 9,185.92

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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.