Home / 8,709.20-13,055.22-5,580.32

Finding the Fourth Proportional to 8,709.20, 13,055.22 and 5,580.32

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Solution

The fourth proportional to 8,709.20, 13,055.22 and 5,580.32 is: 8,364.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.20 : 13,055.22 = 5,580.32 : x
  2. Step 2: Convert to fraction form
    8,709.20/13,055.22 = 5,580.32/x
  3. Step 3: Cross multiply
    8,709.20x = 13,055.22 × 5,580.32
  4. Step 4: Simplify right side
    8,709.20x = 72,852,305.27
  5. Step 5: Solve for x
    x = 72,852,305.27/8,709.20
  6. Step 6: Final answer
    x = 8,364.98

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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.