Home / 17,787.77-24,547.30-9,721.65

Finding the Fourth Proportional to 17,787.77, 24,547.30 and 9,721.65

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Solution

The fourth proportional to 17,787.77, 24,547.30 and 9,721.65 is: 13,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.77 : 24,547.30 = 9,721.65 : x
  2. Step 2: Convert to fraction form
    17,787.77/24,547.30 = 9,721.65/x
  3. Step 3: Cross multiply
    17,787.77x = 24,547.30 × 9,721.65
  4. Step 4: Simplify right side
    17,787.77x = 238,640,381.48
  5. Step 5: Solve for x
    x = 238,640,381.48/17,787.77
  6. Step 6: Final answer
    x = 13,415.98

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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.