Home / 15,780.70-23,667.40-4,684.71

Finding the Fourth Proportional to 15,780.70, 23,667.40 and 4,684.71

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Solution

The fourth proportional to 15,780.70, 23,667.40 and 4,684.71 is: 7,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.70 : 23,667.40 = 4,684.71 : x
  2. Step 2: Convert to fraction form
    15,780.70/23,667.40 = 4,684.71/x
  3. Step 3: Cross multiply
    15,780.70x = 23,667.40 × 4,684.71
  4. Step 4: Simplify right side
    15,780.70x = 110,874,905.45
  5. Step 5: Solve for x
    x = 110,874,905.45/15,780.70
  6. Step 6: Final answer
    x = 7,025.98

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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.