Home / 15,504.02-21,395.70-8,430.46

Finding the Fourth Proportional to 15,504.02, 21,395.70 and 8,430.46

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Solution

The fourth proportional to 15,504.02, 21,395.70 and 8,430.46 is: 11,634.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.02 : 21,395.70 = 8,430.46 : x
  2. Step 2: Convert to fraction form
    15,504.02/21,395.70 = 8,430.46/x
  3. Step 3: Cross multiply
    15,504.02x = 21,395.70 × 8,430.46
  4. Step 4: Simplify right side
    15,504.02x = 180,375,593.02
  5. Step 5: Solve for x
    x = 180,375,593.02/15,504.02
  6. Step 6: Final answer
    x = 11,634.12

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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.