Home / 15,368.33-21,208.09-8,654.62

Finding the Fourth Proportional to 15,368.33, 21,208.09 and 8,654.62

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Solution

The fourth proportional to 15,368.33, 21,208.09 and 8,654.62 is: 11,943.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.33 : 21,208.09 = 8,654.62 : x
  2. Step 2: Convert to fraction form
    15,368.33/21,208.09 = 8,654.62/x
  3. Step 3: Cross multiply
    15,368.33x = 21,208.09 × 8,654.62
  4. Step 4: Simplify right side
    15,368.33x = 183,547,959.88
  5. Step 5: Solve for x
    x = 183,547,959.88/15,368.33
  6. Step 6: Final answer
    x = 11,943.26

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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.