Home / 12,534.29-18,803.60-4,215.10

Finding the Fourth Proportional to 12,534.29, 18,803.60 and 4,215.10

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Solution

The fourth proportional to 12,534.29, 18,803.60 and 4,215.10 is: 6,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,534.29 : 18,803.60 = 4,215.10 : x
  2. Step 2: Convert to fraction form
    12,534.29/18,803.60 = 4,215.10/x
  3. Step 3: Cross multiply
    12,534.29x = 18,803.60 × 4,215.10
  4. Step 4: Simplify right side
    12,534.29x = 79,259,054.36
  5. Step 5: Solve for x
    x = 79,259,054.36/12,534.29
  6. Step 6: Final answer
    x = 6,323.38

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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.