Home / 17,970.09-26,955.11-5,490.15

Finding the Fourth Proportional to 17,970.09, 26,955.11 and 5,490.15

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Solution

The fourth proportional to 17,970.09, 26,955.11 and 5,490.15 is: 8,235.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,970.09 : 26,955.11 = 5,490.15 : x
  2. Step 2: Convert to fraction form
    17,970.09/26,955.11 = 5,490.15/x
  3. Step 3: Cross multiply
    17,970.09x = 26,955.11 × 5,490.15
  4. Step 4: Simplify right side
    17,970.09x = 147,987,569.72
  5. Step 5: Solve for x
    x = 147,987,569.72/17,970.09
  6. Step 6: Final answer
    x = 8,235.22

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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.