Home / 12,515.04-18,723.96-8,607.60

Finding the Fourth Proportional to 12,515.04, 18,723.96 and 8,607.60

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Solution

The fourth proportional to 12,515.04, 18,723.96 and 8,607.60 is: 12,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.04 : 18,723.96 = 8,607.60 : x
  2. Step 2: Convert to fraction form
    12,515.04/18,723.96 = 8,607.60/x
  3. Step 3: Cross multiply
    12,515.04x = 18,723.96 × 8,607.60
  4. Step 4: Simplify right side
    12,515.04x = 161,168,358.10
  5. Step 5: Solve for x
    x = 161,168,358.10/12,515.04
  6. Step 6: Final answer
    x = 12,877.97

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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.