Home / 10,325.40-15,488.69-2,929.28

Finding the Fourth Proportional to 10,325.40, 15,488.69 and 2,929.28

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Solution

The fourth proportional to 10,325.40, 15,488.69 and 2,929.28 is: 4,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,325.40 : 15,488.69 = 2,929.28 : x
  2. Step 2: Convert to fraction form
    10,325.40/15,488.69 = 2,929.28/x
  3. Step 3: Cross multiply
    10,325.40x = 15,488.69 × 2,929.28
  4. Step 4: Simplify right side
    10,325.40x = 45,370,686.82
  5. Step 5: Solve for x
    x = 45,370,686.82/10,325.40
  6. Step 6: Final answer
    x = 4,394.09

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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.