Home / 10,386.39-15,579.57-2,595.21

Finding the Fourth Proportional to 10,386.39, 15,579.57 and 2,595.21

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Solution

The fourth proportional to 10,386.39, 15,579.57 and 2,595.21 is: 3,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.39 : 15,579.57 = 2,595.21 : x
  2. Step 2: Convert to fraction form
    10,386.39/15,579.57 = 2,595.21/x
  3. Step 3: Cross multiply
    10,386.39x = 15,579.57 × 2,595.21
  4. Step 4: Simplify right side
    10,386.39x = 40,432,255.86
  5. Step 5: Solve for x
    x = 40,432,255.86/10,386.39
  6. Step 6: Final answer
    x = 3,892.81

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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.