Home / 15,207.81-22,813.90-4,678.72

Finding the Fourth Proportional to 15,207.81, 22,813.90 and 4,678.72

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Solution

The fourth proportional to 15,207.81, 22,813.90 and 4,678.72 is: 7,018.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.81 : 22,813.90 = 4,678.72 : x
  2. Step 2: Convert to fraction form
    15,207.81/22,813.90 = 4,678.72/x
  3. Step 3: Cross multiply
    15,207.81x = 22,813.90 × 4,678.72
  4. Step 4: Simplify right side
    15,207.81x = 106,739,823.84
  5. Step 5: Solve for x
    x = 106,739,823.84/15,207.81
  6. Step 6: Final answer
    x = 7,018.75

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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.