Home / 15,554.78-21,459.47-9,576.06

Finding the Fourth Proportional to 15,554.78, 21,459.47 and 9,576.06

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Solution

The fourth proportional to 15,554.78, 21,459.47 and 9,576.06 is: 13,211.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.78 : 21,459.47 = 9,576.06 : x
  2. Step 2: Convert to fraction form
    15,554.78/21,459.47 = 9,576.06/x
  3. Step 3: Cross multiply
    15,554.78x = 21,459.47 × 9,576.06
  4. Step 4: Simplify right side
    15,554.78x = 205,497,124.41
  5. Step 5: Solve for x
    x = 205,497,124.41/15,554.78
  6. Step 6: Final answer
    x = 13,211.19

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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.