Home / 19,389.84-29,083.13-7,699.92

Finding the Fourth Proportional to 19,389.84, 29,083.13 and 7,699.92

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Solution

The fourth proportional to 19,389.84, 29,083.13 and 7,699.92 is: 11,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.84 : 29,083.13 = 7,699.92 : x
  2. Step 2: Convert to fraction form
    19,389.84/29,083.13 = 7,699.92/x
  3. Step 3: Cross multiply
    19,389.84x = 29,083.13 × 7,699.92
  4. Step 4: Simplify right side
    19,389.84x = 223,937,774.35
  5. Step 5: Solve for x
    x = 223,937,774.35/19,389.84
  6. Step 6: Final answer
    x = 11,549.23

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1.5x scale

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.