Home / 14,547.50-20,075.63-8,174.36

Finding the Fourth Proportional to 14,547.50, 20,075.63 and 8,174.36

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Solution

The fourth proportional to 14,547.50, 20,075.63 and 8,174.36 is: 11,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,547.50 : 20,075.63 = 8,174.36 : x
  2. Step 2: Convert to fraction form
    14,547.50/20,075.63 = 8,174.36/x
  3. Step 3: Cross multiply
    14,547.50x = 20,075.63 × 8,174.36
  4. Step 4: Simplify right side
    14,547.50x = 164,105,285.60
  5. Step 5: Solve for x
    x = 164,105,285.60/14,547.50
  6. Step 6: Final answer
    x = 11,280.66

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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.