Home / 7,023.60-10,543.32-4,428

Finding the Fourth Proportional to 7,023.60, 10,543.32 and 4,428

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Solution

The fourth proportional to 7,023.60, 10,543.32 and 4,428 is: 6,646.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.60 : 10,543.32 = 4,428 : x
  2. Step 2: Convert to fraction form
    7,023.60/10,543.32 = 4,428/x
  3. Step 3: Cross multiply
    7,023.60x = 10,543.32 × 4,428
  4. Step 4: Simplify right side
    7,023.60x = 46,685,820.96
  5. Step 5: Solve for x
    x = 46,685,820.96/7,023.60
  6. Step 6: Final answer
    x = 6,646.99

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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.