Home / 8,075.90-11,146.02-4,720.70

Finding the Fourth Proportional to 8,075.90, 11,146.02 and 4,720.70

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Solution

The fourth proportional to 8,075.90, 11,146.02 and 4,720.70 is: 6,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.90 : 11,146.02 = 4,720.70 : x
  2. Step 2: Convert to fraction form
    8,075.90/11,146.02 = 4,720.70/x
  3. Step 3: Cross multiply
    8,075.90x = 11,146.02 × 4,720.70
  4. Step 4: Simplify right side
    8,075.90x = 52,617,016.61
  5. Step 5: Solve for x
    x = 52,617,016.61/8,075.90
  6. Step 6: Final answer
    x = 6,515.31

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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.