Home / 21,207.69-29,264.90-11,776.05

Finding the Fourth Proportional to 21,207.69, 29,264.90 and 11,776.05

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Solution

The fourth proportional to 21,207.69, 29,264.90 and 11,776.05 is: 16,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.69 : 29,264.90 = 11,776.05 : x
  2. Step 2: Convert to fraction form
    21,207.69/29,264.90 = 11,776.05/x
  3. Step 3: Cross multiply
    21,207.69x = 29,264.90 × 11,776.05
  4. Step 4: Simplify right side
    21,207.69x = 344,624,866.76
  5. Step 5: Solve for x
    x = 344,624,866.76/21,207.69
  6. Step 6: Final answer
    x = 16,250.00

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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.