Home / 26,780.95-40,172.00-9,012.15

Finding the Fourth Proportional to 26,780.95, 40,172.00 and 9,012.15

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Solution

The fourth proportional to 26,780.95, 40,172.00 and 9,012.15 is: 13,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,780.95 : 40,172.00 = 9,012.15 : x
  2. Step 2: Convert to fraction form
    26,780.95/40,172.00 = 9,012.15/x
  3. Step 3: Cross multiply
    26,780.95x = 40,172.00 × 9,012.15
  4. Step 4: Simplify right side
    26,780.95x = 362,036,038.94
  5. Step 5: Solve for x
    x = 362,036,038.94/26,780.95
  6. Step 6: Final answer
    x = 13,518.41

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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.