Home / 13,011.20-19,459.20-10,937.60

Finding the Fourth Proportional to 13,011.20, 19,459.20 and 10,937.60

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Solution

The fourth proportional to 13,011.20, 19,459.20 and 10,937.60 is: 16,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.20 : 19,459.20 = 10,937.60 : x
  2. Step 2: Convert to fraction form
    13,011.20/19,459.20 = 10,937.60/x
  3. Step 3: Cross multiply
    13,011.20x = 19,459.20 × 10,937.60
  4. Step 4: Simplify right side
    13,011.20x = 212,836,945.92
  5. Step 5: Solve for x
    x = 212,836,945.92/13,011.20
  6. Step 6: Final answer
    x = 16,357.98

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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.