Home / 15,600.11-21,529.64-8,887.91

Finding the Fourth Proportional to 15,600.11, 21,529.64 and 8,887.91

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Solution

The fourth proportional to 15,600.11, 21,529.64 and 8,887.91 is: 12,266.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.11 : 21,529.64 = 8,887.91 : x
  2. Step 2: Convert to fraction form
    15,600.11/21,529.64 = 8,887.91/x
  3. Step 3: Cross multiply
    15,600.11x = 21,529.64 × 8,887.91
  4. Step 4: Simplify right side
    15,600.11x = 191,353,417.22
  5. Step 5: Solve for x
    x = 191,353,417.22/15,600.11
  6. Step 6: Final answer
    x = 12,266.16

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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.