Home / 10,258.90-15,390.76-3,333.40

Finding the Fourth Proportional to 10,258.90, 15,390.76 and 3,333.40

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Solution

The fourth proportional to 10,258.90, 15,390.76 and 3,333.40 is: 5,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.90 : 15,390.76 = 3,333.40 : x
  2. Step 2: Convert to fraction form
    10,258.90/15,390.76 = 3,333.40/x
  3. Step 3: Cross multiply
    10,258.90x = 15,390.76 × 3,333.40
  4. Step 4: Simplify right side
    10,258.90x = 51,303,559.38
  5. Step 5: Solve for x
    x = 51,303,559.38/10,258.90
  6. Step 6: Final answer
    x = 5,000.88

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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.