Home / 13,981.96-20,946.90-6,953.92

Finding the Fourth Proportional to 13,981.96, 20,946.90 and 6,953.92

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Solution

The fourth proportional to 13,981.96, 20,946.90 and 6,953.92 is: 10,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.96 : 20,946.90 = 6,953.92 : x
  2. Step 2: Convert to fraction form
    13,981.96/20,946.90 = 6,953.92/x
  3. Step 3: Cross multiply
    13,981.96x = 20,946.90 × 6,953.92
  4. Step 4: Simplify right side
    13,981.96x = 145,663,066.85
  5. Step 5: Solve for x
    x = 145,663,066.85/13,981.96
  6. Step 6: Final answer
    x = 10,417.93

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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.