Home / 10,270.89-15,432.29-9,855.71

Finding the Fourth Proportional to 10,270.89, 15,432.29 and 9,855.71

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Solution

The fourth proportional to 10,270.89, 15,432.29 and 9,855.71 is: 14,808.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.89 : 15,432.29 = 9,855.71 : x
  2. Step 2: Convert to fraction form
    10,270.89/15,432.29 = 9,855.71/x
  3. Step 3: Cross multiply
    10,270.89x = 15,432.29 × 9,855.71
  4. Step 4: Simplify right side
    10,270.89x = 152,096,048.44
  5. Step 5: Solve for x
    x = 152,096,048.44/10,270.89
  6. Step 6: Final answer
    x = 14,808.46

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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.