Home / 10,251.90-15,386.00-4,707.81

Finding the Fourth Proportional to 10,251.90, 15,386.00 and 4,707.81

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Solution

The fourth proportional to 10,251.90, 15,386.00 and 4,707.81 is: 7,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.90 : 15,386.00 = 4,707.81 : x
  2. Step 2: Convert to fraction form
    10,251.90/15,386.00 = 4,707.81/x
  3. Step 3: Cross multiply
    10,251.90x = 15,386.00 × 4,707.81
  4. Step 4: Simplify right side
    10,251.90x = 72,434,341.12
  5. Step 5: Solve for x
    x = 72,434,341.12/10,251.90
  6. Step 6: Final answer
    x = 7,065.46

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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.