Home / 10,438.05-15,648.30-4,888.47

Finding the Fourth Proportional to 10,438.05, 15,648.30 and 4,888.47

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Solution

The fourth proportional to 10,438.05, 15,648.30 and 4,888.47 is: 7,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.05 : 15,648.30 = 4,888.47 : x
  2. Step 2: Convert to fraction form
    10,438.05/15,648.30 = 4,888.47/x
  3. Step 3: Cross multiply
    10,438.05x = 15,648.30 × 4,888.47
  4. Step 4: Simplify right side
    10,438.05x = 76,496,245.10
  5. Step 5: Solve for x
    x = 76,496,245.10/10,438.05
  6. Step 6: Final answer
    x = 7,328.60

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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.