Home / 13,000.60-19,500.90-11,688.40

Finding the Fourth Proportional to 13,000.60, 19,500.90 and 11,688.40

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Solution

The fourth proportional to 13,000.60, 19,500.90 and 11,688.40 is: 17,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.60 : 19,500.90 = 11,688.40 : x
  2. Step 2: Convert to fraction form
    13,000.60/19,500.90 = 11,688.40/x
  3. Step 3: Cross multiply
    13,000.60x = 19,500.90 × 11,688.40
  4. Step 4: Simplify right side
    13,000.60x = 227,934,319.56
  5. Step 5: Solve for x
    x = 227,934,319.56/13,000.60
  6. Step 6: Final answer
    x = 17,532.60

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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.