Home / 12,653.27-18,981.93-6,410.76

Finding the Fourth Proportional to 12,653.27, 18,981.93 and 6,410.76

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Solution

The fourth proportional to 12,653.27, 18,981.93 and 6,410.76 is: 9,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.27 : 18,981.93 = 6,410.76 : x
  2. Step 2: Convert to fraction form
    12,653.27/18,981.93 = 6,410.76/x
  3. Step 3: Cross multiply
    12,653.27x = 18,981.93 × 6,410.76
  4. Step 4: Simplify right side
    12,653.27x = 121,688,597.57
  5. Step 5: Solve for x
    x = 121,688,597.57/12,653.27
  6. Step 6: Final answer
    x = 9,617.17

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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.