Home / 21,166.72-29,210.40-11,607.48

Finding the Fourth Proportional to 21,166.72, 29,210.40 and 11,607.48

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Solution

The fourth proportional to 21,166.72, 29,210.40 and 11,607.48 is: 16,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.72 : 29,210.40 = 11,607.48 : x
  2. Step 2: Convert to fraction form
    21,166.72/29,210.40 = 11,607.48/x
  3. Step 3: Cross multiply
    21,166.72x = 29,210.40 × 11,607.48
  4. Step 4: Simplify right side
    21,166.72x = 339,059,133.79
  5. Step 5: Solve for x
    x = 339,059,133.79/21,166.72
  6. Step 6: Final answer
    x = 16,018.50

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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.