Home / 10,918.91-15,068.10-6,203.20

Finding the Fourth Proportional to 10,918.91, 15,068.10 and 6,203.20

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Solution

The fourth proportional to 10,918.91, 15,068.10 and 6,203.20 is: 8,560.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.91 : 15,068.10 = 6,203.20 : x
  2. Step 2: Convert to fraction form
    10,918.91/15,068.10 = 6,203.20/x
  3. Step 3: Cross multiply
    10,918.91x = 15,068.10 × 6,203.20
  4. Step 4: Simplify right side
    10,918.91x = 93,470,437.92
  5. Step 5: Solve for x
    x = 93,470,437.92/10,918.91
  6. Step 6: Final answer
    x = 8,560.42

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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.