Home / 10,404.28-14,358.90-6,427.72

Finding the Fourth Proportional to 10,404.28, 14,358.90 and 6,427.72

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Solution

The fourth proportional to 10,404.28, 14,358.90 and 6,427.72 is: 8,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,404.28 : 14,358.90 = 6,427.72 : x
  2. Step 2: Convert to fraction form
    10,404.28/14,358.90 = 6,427.72/x
  3. Step 3: Cross multiply
    10,404.28x = 14,358.90 × 6,427.72
  4. Step 4: Simplify right side
    10,404.28x = 92,294,988.71
  5. Step 5: Solve for x
    x = 92,294,988.71/10,404.28
  6. Step 6: Final answer
    x = 8,870.87

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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.