Home / 8,955.06-13,395.28-8,290.76

Finding the Fourth Proportional to 8,955.06, 13,395.28 and 8,290.76

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Solution

The fourth proportional to 8,955.06, 13,395.28 and 8,290.76 is: 12,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.06 : 13,395.28 = 8,290.76 : x
  2. Step 2: Convert to fraction form
    8,955.06/13,395.28 = 8,290.76/x
  3. Step 3: Cross multiply
    8,955.06x = 13,395.28 × 8,290.76
  4. Step 4: Simplify right side
    8,955.06x = 111,057,051.61
  5. Step 5: Solve for x
    x = 111,057,051.61/8,955.06
  6. Step 6: Final answer
    x = 12,401.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.