Home / 10,386.38-15,579.59-4,146.90

Finding the Fourth Proportional to 10,386.38, 15,579.59 and 4,146.90

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Solution

The fourth proportional to 10,386.38, 15,579.59 and 4,146.90 is: 6,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.38 : 15,579.59 = 4,146.90 : x
  2. Step 2: Convert to fraction form
    10,386.38/15,579.59 = 4,146.90/x
  3. Step 3: Cross multiply
    10,386.38x = 15,579.59 × 4,146.90
  4. Step 4: Simplify right side
    10,386.38x = 64,606,945.94
  5. Step 5: Solve for x
    x = 64,606,945.94/10,386.38
  6. Step 6: Final answer
    x = 6,220.35

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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.