Home / 12,347.10-18,521.87-4,554.09

Finding the Fourth Proportional to 12,347.10, 18,521.87 and 4,554.09

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Solution

The fourth proportional to 12,347.10, 18,521.87 and 4,554.09 is: 6,831.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.10 : 18,521.87 = 4,554.09 : x
  2. Step 2: Convert to fraction form
    12,347.10/18,521.87 = 4,554.09/x
  3. Step 3: Cross multiply
    12,347.10x = 18,521.87 × 4,554.09
  4. Step 4: Simplify right side
    12,347.10x = 84,350,240.18
  5. Step 5: Solve for x
    x = 84,350,240.18/12,347.10
  6. Step 6: Final answer
    x = 6,831.58

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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.