Home / 10,538.89-15,808.33-3,148.53

Finding the Fourth Proportional to 10,538.89, 15,808.33 and 3,148.53

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Solution

The fourth proportional to 10,538.89, 15,808.33 and 3,148.53 is: 4,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.89 : 15,808.33 = 3,148.53 : x
  2. Step 2: Convert to fraction form
    10,538.89/15,808.33 = 3,148.53/x
  3. Step 3: Cross multiply
    10,538.89x = 15,808.33 × 3,148.53
  4. Step 4: Simplify right side
    10,538.89x = 49,772,985.51
  5. Step 5: Solve for x
    x = 49,772,985.51/10,538.89
  6. Step 6: Final answer
    x = 4,722.79

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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.