Home / 14,483.08-19,981.32-8,815.48

Finding the Fourth Proportional to 14,483.08, 19,981.32 and 8,815.48

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Solution

The fourth proportional to 14,483.08, 19,981.32 and 8,815.48 is: 12,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.08 : 19,981.32 = 8,815.48 : x
  2. Step 2: Convert to fraction form
    14,483.08/19,981.32 = 8,815.48/x
  3. Step 3: Cross multiply
    14,483.08x = 19,981.32 × 8,815.48
  4. Step 4: Simplify right side
    14,483.08x = 176,144,926.83
  5. Step 5: Solve for x
    x = 176,144,926.83/14,483.08
  6. Step 6: Final answer
    x = 12,162.12

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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.