Home / 8,075.29-11,130.19-6,160.45

Finding the Fourth Proportional to 8,075.29, 11,130.19 and 6,160.45

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Solution

The fourth proportional to 8,075.29, 11,130.19 and 6,160.45 is: 8,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.29 : 11,130.19 = 6,160.45 : x
  2. Step 2: Convert to fraction form
    8,075.29/11,130.19 = 6,160.45/x
  3. Step 3: Cross multiply
    8,075.29x = 11,130.19 × 6,160.45
  4. Step 4: Simplify right side
    8,075.29x = 68,566,978.99
  5. Step 5: Solve for x
    x = 68,566,978.99/8,075.29
  6. Step 6: Final answer
    x = 8,490.96

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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.