Home / 19,526.79-29,290.17-7,840

Finding the Fourth Proportional to 19,526.79, 29,290.17 and 7,840

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Solution

The fourth proportional to 19,526.79, 29,290.17 and 7,840 is: 11,760.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,526.79 : 29,290.17 = 7,840 : x
  2. Step 2: Convert to fraction form
    19,526.79/29,290.17 = 7,840/x
  3. Step 3: Cross multiply
    19,526.79x = 29,290.17 × 7,840
  4. Step 4: Simplify right side
    19,526.79x = 229,634,932.80
  5. Step 5: Solve for x
    x = 229,634,932.80/19,526.79
  6. Step 6: Final answer
    x = 11,760.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.