Home / 18,085.80-27,130.59-5,605.32

Finding the Fourth Proportional to 18,085.80, 27,130.59 and 5,605.32

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Solution

The fourth proportional to 18,085.80, 27,130.59 and 5,605.32 is: 8,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085.80 : 27,130.59 = 5,605.32 : x
  2. Step 2: Convert to fraction form
    18,085.80/27,130.59 = 5,605.32/x
  3. Step 3: Cross multiply
    18,085.80x = 27,130.59 × 5,605.32
  4. Step 4: Simplify right side
    18,085.80x = 152,075,638.74
  5. Step 5: Solve for x
    x = 152,075,638.74/18,085.80
  6. Step 6: Final answer
    x = 8,408.57

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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.