Home / 14,547.50-20,075.82-8,087.75

Finding the Fourth Proportional to 14,547.50, 20,075.82 and 8,087.75

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Solution

The fourth proportional to 14,547.50, 20,075.82 and 8,087.75 is: 11,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,547.50 : 20,075.82 = 8,087.75 : x
  2. Step 2: Convert to fraction form
    14,547.50/20,075.82 = 8,087.75/x
  3. Step 3: Cross multiply
    14,547.50x = 20,075.82 × 8,087.75
  4. Step 4: Simplify right side
    14,547.50x = 162,368,213.21
  5. Step 5: Solve for x
    x = 162,368,213.21/14,547.50
  6. Step 6: Final answer
    x = 11,161.25

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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.