Home / 13,488.29-18,631.99-12,230.76

Finding the Fourth Proportional to 13,488.29, 18,631.99 and 12,230.76

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Solution

The fourth proportional to 13,488.29, 18,631.99 and 12,230.76 is: 16,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.29 : 18,631.99 = 12,230.76 : x
  2. Step 2: Convert to fraction form
    13,488.29/18,631.99 = 12,230.76/x
  3. Step 3: Cross multiply
    13,488.29x = 18,631.99 × 12,230.76
  4. Step 4: Simplify right side
    13,488.29x = 227,883,483.17
  5. Step 5: Solve for x
    x = 227,883,483.17/13,488.29
  6. Step 6: Final answer
    x = 16,894.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.