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Finding the Fourth Proportional to 10,276.80, 14,426.40 and 10,276.80

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Solution

The fourth proportional to 10,276.80, 14,426.40 and 10,276.80 is: 14,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.80 : 14,426.40 = 10,276.80 : x
  2. Step 2: Convert to fraction form
    10,276.80/14,426.40 = 10,276.80/x
  3. Step 3: Cross multiply
    10,276.80x = 14,426.40 × 10,276.80
  4. Step 4: Simplify right side
    10,276.80x = 148,257,227.52
  5. Step 5: Solve for x
    x = 148,257,227.52/10,276.80
  6. Step 6: Final answer
    x = 14,426.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.