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Finding the Fourth Proportional to 8,615.04, 11,883.10 and 5,075.76

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Solution

The fourth proportional to 8,615.04, 11,883.10 and 5,075.76 is: 7,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.04 : 11,883.10 = 5,075.76 : x
  2. Step 2: Convert to fraction form
    8,615.04/11,883.10 = 5,075.76/x
  3. Step 3: Cross multiply
    8,615.04x = 11,883.10 × 5,075.76
  4. Step 4: Simplify right side
    8,615.04x = 60,315,763.66
  5. Step 5: Solve for x
    x = 60,315,763.66/8,615.04
  6. Step 6: Final answer
    x = 7,001.22

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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.