Home / 10,480.60-15,720.90-3,555.16

Finding the Fourth Proportional to 10,480.60, 15,720.90 and 3,555.16

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Solution

The fourth proportional to 10,480.60, 15,720.90 and 3,555.16 is: 5,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.60 : 15,720.90 = 3,555.16 : x
  2. Step 2: Convert to fraction form
    10,480.60/15,720.90 = 3,555.16/x
  3. Step 3: Cross multiply
    10,480.60x = 15,720.90 × 3,555.16
  4. Step 4: Simplify right side
    10,480.60x = 55,890,314.84
  5. Step 5: Solve for x
    x = 55,890,314.84/10,480.60
  6. Step 6: Final answer
    x = 5,332.74

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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.