Home / 15,332.67-21,153.09-8,616.77

Finding the Fourth Proportional to 15,332.67, 21,153.09 and 8,616.77

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Solution

The fourth proportional to 15,332.67, 21,153.09 and 8,616.77 is: 11,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.67 : 21,153.09 = 8,616.77 : x
  2. Step 2: Convert to fraction form
    15,332.67/21,153.09 = 8,616.77/x
  3. Step 3: Cross multiply
    15,332.67x = 21,153.09 × 8,616.77
  4. Step 4: Simplify right side
    15,332.67x = 182,271,205.55
  5. Step 5: Solve for x
    x = 182,271,205.55/15,332.67
  6. Step 6: Final answer
    x = 11,887.77

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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.