Home / 12,530.60-18,795.90-11,580.20

Finding the Fourth Proportional to 12,530.60, 18,795.90 and 11,580.20

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Solution

The fourth proportional to 12,530.60, 18,795.90 and 11,580.20 is: 17,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.60 : 18,795.90 = 11,580.20 : x
  2. Step 2: Convert to fraction form
    12,530.60/18,795.90 = 11,580.20/x
  3. Step 3: Cross multiply
    12,530.60x = 18,795.90 × 11,580.20
  4. Step 4: Simplify right side
    12,530.60x = 217,660,281.18
  5. Step 5: Solve for x
    x = 217,660,281.18/12,530.60
  6. Step 6: Final answer
    x = 17,370.30

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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.