Home / 15,075.67-20,801.93-8,360.23

Finding the Fourth Proportional to 15,075.67, 20,801.93 and 8,360.23

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Solution

The fourth proportional to 15,075.67, 20,801.93 and 8,360.23 is: 11,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.67 : 20,801.93 = 8,360.23 : x
  2. Step 2: Convert to fraction form
    15,075.67/20,801.93 = 8,360.23/x
  3. Step 3: Cross multiply
    15,075.67x = 20,801.93 × 8,360.23
  4. Step 4: Simplify right side
    15,075.67x = 173,908,940.14
  5. Step 5: Solve for x
    x = 173,908,940.14/15,075.67
  6. Step 6: Final answer
    x = 11,535.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.