Home / 10,403.28-14,357.52-6,426.72

Finding the Fourth Proportional to 10,403.28, 14,357.52 and 6,426.72

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Solution

The fourth proportional to 10,403.28, 14,357.52 and 6,426.72 is: 8,869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.28 : 14,357.52 = 6,426.72 : x
  2. Step 2: Convert to fraction form
    10,403.28/14,357.52 = 6,426.72/x
  3. Step 3: Cross multiply
    10,403.28x = 14,357.52 × 6,426.72
  4. Step 4: Simplify right side
    10,403.28x = 92,271,760.93
  5. Step 5: Solve for x
    x = 92,271,760.93/10,403.28
  6. Step 6: Final answer
    x = 8,869.49

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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.