Home / 10,227.60-15,341.40-5,639.76

Finding the Fourth Proportional to 10,227.60, 15,341.40 and 5,639.76

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Solution

The fourth proportional to 10,227.60, 15,341.40 and 5,639.76 is: 8,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,227.60 : 15,341.40 = 5,639.76 : x
  2. Step 2: Convert to fraction form
    10,227.60/15,341.40 = 5,639.76/x
  3. Step 3: Cross multiply
    10,227.60x = 15,341.40 × 5,639.76
  4. Step 4: Simplify right side
    10,227.60x = 86,521,814.06
  5. Step 5: Solve for x
    x = 86,521,814.06/10,227.60
  6. Step 6: Final answer
    x = 8,459.64

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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.