Home / 8,755.02-12,075.93-5,215.50

Finding the Fourth Proportional to 8,755.02, 12,075.93 and 5,215.50

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Solution

The fourth proportional to 8,755.02, 12,075.93 and 5,215.50 is: 7,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.02 : 12,075.93 = 5,215.50 : x
  2. Step 2: Convert to fraction form
    8,755.02/12,075.93 = 5,215.50/x
  3. Step 3: Cross multiply
    8,755.02x = 12,075.93 × 5,215.50
  4. Step 4: Simplify right side
    8,755.02x = 62,982,012.92
  5. Step 5: Solve for x
    x = 62,982,012.92/8,755.02
  6. Step 6: Final answer
    x = 7,193.82

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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.