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Finding the Fourth Proportional to 13,300.60, 19,950.94 and 12,488.68

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Solution

The fourth proportional to 13,300.60, 19,950.94 and 12,488.68 is: 18,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.60 : 19,950.94 = 12,488.68 : x
  2. Step 2: Convert to fraction form
    13,300.60/19,950.94 = 12,488.68/x
  3. Step 3: Cross multiply
    13,300.60x = 19,950.94 × 12,488.68
  4. Step 4: Simplify right side
    13,300.60x = 249,160,905.36
  5. Step 5: Solve for x
    x = 249,160,905.36/13,300.60
  6. Step 6: Final answer
    x = 18,733.06

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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.