Home / 10,818.90-14,930.19-6,345.30

Finding the Fourth Proportional to 10,818.90, 14,930.19 and 6,345.30

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Solution

The fourth proportional to 10,818.90, 14,930.19 and 6,345.30 is: 8,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.90 : 14,930.19 = 6,345.30 : x
  2. Step 2: Convert to fraction form
    10,818.90/14,930.19 = 6,345.30/x
  3. Step 3: Cross multiply
    10,818.90x = 14,930.19 × 6,345.30
  4. Step 4: Simplify right side
    10,818.90x = 94,736,534.61
  5. Step 5: Solve for x
    x = 94,736,534.61/10,818.90
  6. Step 6: Final answer
    x = 8,756.58

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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.