Home / 12,580.56-18,875.16-4,790.52

Finding the Fourth Proportional to 12,580.56, 18,875.16 and 4,790.52

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Solution

The fourth proportional to 12,580.56, 18,875.16 and 4,790.52 is: 7,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.56 : 18,875.16 = 4,790.52 : x
  2. Step 2: Convert to fraction form
    12,580.56/18,875.16 = 4,790.52/x
  3. Step 3: Cross multiply
    12,580.56x = 18,875.16 × 4,790.52
  4. Step 4: Simplify right side
    12,580.56x = 90,421,831.48
  5. Step 5: Solve for x
    x = 90,421,831.48/12,580.56
  6. Step 6: Final answer
    x = 7,187.43

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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.