Home / 8,470.04-12,688.65-4,090.57

Finding the Fourth Proportional to 8,470.04, 12,688.65 and 4,090.57

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Solution

The fourth proportional to 8,470.04, 12,688.65 and 4,090.57 is: 6,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.04 : 12,688.65 = 4,090.57 : x
  2. Step 2: Convert to fraction form
    8,470.04/12,688.65 = 4,090.57/x
  3. Step 3: Cross multiply
    8,470.04x = 12,688.65 × 4,090.57
  4. Step 4: Simplify right side
    8,470.04x = 51,903,811.03
  5. Step 5: Solve for x
    x = 51,903,811.03/8,470.04
  6. Step 6: Final answer
    x = 6,127.93

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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.