Home / 10,635.40-15,948.78-4,631.80

Finding the Fourth Proportional to 10,635.40, 15,948.78 and 4,631.80

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Solution

The fourth proportional to 10,635.40, 15,948.78 and 4,631.80 is: 6,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,635.40 : 15,948.78 = 4,631.80 : x
  2. Step 2: Convert to fraction form
    10,635.40/15,948.78 = 4,631.80/x
  3. Step 3: Cross multiply
    10,635.40x = 15,948.78 × 4,631.80
  4. Step 4: Simplify right side
    10,635.40x = 73,871,559.20
  5. Step 5: Solve for x
    x = 73,871,559.20/10,635.40
  6. Step 6: Final answer
    x = 6,945.82

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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.