Home / 8,458.31-12,688.32-4,953.62

Finding the Fourth Proportional to 8,458.31, 12,688.32 and 4,953.62

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Solution

The fourth proportional to 8,458.31, 12,688.32 and 4,953.62 is: 7,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.31 : 12,688.32 = 4,953.62 : x
  2. Step 2: Convert to fraction form
    8,458.31/12,688.32 = 4,953.62/x
  3. Step 3: Cross multiply
    8,458.31x = 12,688.32 × 4,953.62
  4. Step 4: Simplify right side
    8,458.31x = 62,853,115.72
  5. Step 5: Solve for x
    x = 62,853,115.72/8,458.31
  6. Step 6: Final answer
    x = 7,430.93

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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.