Home / 11,818.84-16,312.78-7,345.97

Finding the Fourth Proportional to 11,818.84, 16,312.78 and 7,345.97

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Solution

The fourth proportional to 11,818.84, 16,312.78 and 7,345.97 is: 10,139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.84 : 16,312.78 = 7,345.97 : x
  2. Step 2: Convert to fraction form
    11,818.84/16,312.78 = 7,345.97/x
  3. Step 3: Cross multiply
    11,818.84x = 16,312.78 × 7,345.97
  4. Step 4: Simplify right side
    11,818.84x = 119,833,192.50
  5. Step 5: Solve for x
    x = 119,833,192.50/11,818.84
  6. Step 6: Final answer
    x = 10,139.17

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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.