Home / 13,607.20-20,410.80-4,842.40

Finding the Fourth Proportional to 13,607.20, 20,410.80 and 4,842.40

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Solution

The fourth proportional to 13,607.20, 20,410.80 and 4,842.40 is: 7,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.20 : 20,410.80 = 4,842.40 : x
  2. Step 2: Convert to fraction form
    13,607.20/20,410.80 = 4,842.40/x
  3. Step 3: Cross multiply
    13,607.20x = 20,410.80 × 4,842.40
  4. Step 4: Simplify right side
    13,607.20x = 98,837,257.92
  5. Step 5: Solve for x
    x = 98,837,257.92/13,607.20
  6. Step 6: Final answer
    x = 7,263.60

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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.