Home / 10,263.71-15,386.31-3,688.40

Finding the Fourth Proportional to 10,263.71, 15,386.31 and 3,688.40

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Solution

The fourth proportional to 10,263.71, 15,386.31 and 3,688.40 is: 5,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,263.71 : 15,386.31 = 3,688.40 : x
  2. Step 2: Convert to fraction form
    10,263.71/15,386.31 = 3,688.40/x
  3. Step 3: Cross multiply
    10,263.71x = 15,386.31 × 3,688.40
  4. Step 4: Simplify right side
    10,263.71x = 56,750,865.80
  5. Step 5: Solve for x
    x = 56,750,865.80/10,263.71
  6. Step 6: Final answer
    x = 5,529.27

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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.