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Finding the Fourth Proportional to 15,774.82, 21,769.21 and 9,060.89

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Solution

The fourth proportional to 15,774.82, 21,769.21 and 9,060.89 is: 12,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.82 : 21,769.21 = 9,060.89 : x
  2. Step 2: Convert to fraction form
    15,774.82/21,769.21 = 9,060.89/x
  3. Step 3: Cross multiply
    15,774.82x = 21,769.21 × 9,060.89
  4. Step 4: Simplify right side
    15,774.82x = 197,248,417.20
  5. Step 5: Solve for x
    x = 197,248,417.20/15,774.82
  6. Step 6: Final answer
    x = 12,504.00

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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.