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Finding the Fourth Proportional to 10,263.80, 15,386.10 and 8,041.40

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Solution

The fourth proportional to 10,263.80, 15,386.10 and 8,041.40 is: 12,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,263.80 : 15,386.10 = 8,041.40 : x
  2. Step 2: Convert to fraction form
    10,263.80/15,386.10 = 8,041.40/x
  3. Step 3: Cross multiply
    10,263.80x = 15,386.10 × 8,041.40
  4. Step 4: Simplify right side
    10,263.80x = 123,725,784.54
  5. Step 5: Solve for x
    x = 123,725,784.54/10,263.80
  6. Step 6: Final answer
    x = 12,054.58

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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.