Home / 11,029.61-15,224.16-8,790.68

Finding the Fourth Proportional to 11,029.61, 15,224.16 and 8,790.68

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Solution

The fourth proportional to 11,029.61, 15,224.16 and 8,790.68 is: 12,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.61 : 15,224.16 = 8,790.68 : x
  2. Step 2: Convert to fraction form
    11,029.61/15,224.16 = 8,790.68/x
  3. Step 3: Cross multiply
    11,029.61x = 15,224.16 × 8,790.68
  4. Step 4: Simplify right side
    11,029.61x = 133,830,642.71
  5. Step 5: Solve for x
    x = 133,830,642.71/11,029.61
  6. Step 6: Final answer
    x = 12,133.77

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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.