Home / 13,295.62-18,325.47-9,309.61

Finding the Fourth Proportional to 13,295.62, 18,325.47 and 9,309.61

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Solution

The fourth proportional to 13,295.62, 18,325.47 and 9,309.61 is: 12,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.62 : 18,325.47 = 9,309.61 : x
  2. Step 2: Convert to fraction form
    13,295.62/18,325.47 = 9,309.61/x
  3. Step 3: Cross multiply
    13,295.62x = 18,325.47 × 9,309.61
  4. Step 4: Simplify right side
    13,295.62x = 170,602,978.77
  5. Step 5: Solve for x
    x = 170,602,978.77/13,295.62
  6. Step 6: Final answer
    x = 12,831.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.