Home / 10,471.28-15,693.55-4,912.35

Finding the Fourth Proportional to 10,471.28, 15,693.55 and 4,912.35

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Solution

The fourth proportional to 10,471.28, 15,693.55 and 4,912.35 is: 7,362.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.28 : 15,693.55 = 4,912.35 : x
  2. Step 2: Convert to fraction form
    10,471.28/15,693.55 = 4,912.35/x
  3. Step 3: Cross multiply
    10,471.28x = 15,693.55 × 4,912.35
  4. Step 4: Simplify right side
    10,471.28x = 77,092,139.21
  5. Step 5: Solve for x
    x = 77,092,139.21/10,471.28
  6. Step 6: Final answer
    x = 7,362.25

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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.