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Finding the Fourth Proportional to 15,572.88, 21,483.54 and 11,313

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Solution

The fourth proportional to 15,572.88, 21,483.54 and 11,313 is: 15,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.88 : 21,483.54 = 11,313 : x
  2. Step 2: Convert to fraction form
    15,572.88/21,483.54 = 11,313/x
  3. Step 3: Cross multiply
    15,572.88x = 21,483.54 × 11,313
  4. Step 4: Simplify right side
    15,572.88x = 243,043,288.02
  5. Step 5: Solve for x
    x = 243,043,288.02/15,572.88
  6. Step 6: Final answer
    x = 15,606.83

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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.