Home / 10,386.32-15,579.50-4,543.38

Finding the Fourth Proportional to 10,386.32, 15,579.50 and 4,543.38

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Solution

The fourth proportional to 10,386.32, 15,579.50 and 4,543.38 is: 6,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.32 : 15,579.50 = 4,543.38 : x
  2. Step 2: Convert to fraction form
    10,386.32/15,579.50 = 4,543.38/x
  3. Step 3: Cross multiply
    10,386.32x = 15,579.50 × 4,543.38
  4. Step 4: Simplify right side
    10,386.32x = 70,783,565.99
  5. Step 5: Solve for x
    x = 70,783,565.99/10,386.32
  6. Step 6: Final answer
    x = 6,815.08

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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.