Home / 7,818.78-10,788.91-4,461.40

Finding the Fourth Proportional to 7,818.78, 10,788.91 and 4,461.40

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Solution

The fourth proportional to 7,818.78, 10,788.91 and 4,461.40 is: 6,156.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.78 : 10,788.91 = 4,461.40 : x
  2. Step 2: Convert to fraction form
    7,818.78/10,788.91 = 4,461.40/x
  3. Step 3: Cross multiply
    7,818.78x = 10,788.91 × 4,461.40
  4. Step 4: Simplify right side
    7,818.78x = 48,133,643.07
  5. Step 5: Solve for x
    x = 48,133,643.07/7,818.78
  6. Step 6: Final answer
    x = 6,156.16

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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.