Home / 12,529.11-17,284.95-8,055.48

Finding the Fourth Proportional to 12,529.11, 17,284.95 and 8,055.48

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Solution

The fourth proportional to 12,529.11, 17,284.95 and 8,055.48 is: 11,113.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.11 : 17,284.95 = 8,055.48 : x
  2. Step 2: Convert to fraction form
    12,529.11/17,284.95 = 8,055.48/x
  3. Step 3: Cross multiply
    12,529.11x = 17,284.95 × 8,055.48
  4. Step 4: Simplify right side
    12,529.11x = 139,238,569.03
  5. Step 5: Solve for x
    x = 139,238,569.03/12,529.11
  6. Step 6: Final answer
    x = 11,113.21

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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.