Home / 17,887.20-26,830.80-4,740.90

Finding the Fourth Proportional to 17,887.20, 26,830.80 and 4,740.90

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Solution

The fourth proportional to 17,887.20, 26,830.80 and 4,740.90 is: 7,111.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.20 : 26,830.80 = 4,740.90 : x
  2. Step 2: Convert to fraction form
    17,887.20/26,830.80 = 4,740.90/x
  3. Step 3: Cross multiply
    17,887.20x = 26,830.80 × 4,740.90
  4. Step 4: Simplify right side
    17,887.20x = 127,202,139.72
  5. Step 5: Solve for x
    x = 127,202,139.72/17,887.20
  6. Step 6: Final answer
    x = 7,111.35

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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.