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Finding the Fourth Proportional to 10,200.68, 15,290.66 and 6,914.10

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Solution

The fourth proportional to 10,200.68, 15,290.66 and 6,914.10 is: 10,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.68 : 15,290.66 = 6,914.10 : x
  2. Step 2: Convert to fraction form
    10,200.68/15,290.66 = 6,914.10/x
  3. Step 3: Cross multiply
    10,200.68x = 15,290.66 × 6,914.10
  4. Step 4: Simplify right side
    10,200.68x = 105,721,152.31
  5. Step 5: Solve for x
    x = 105,721,152.31/10,200.68
  6. Step 6: Final answer
    x = 10,364.13

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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.