Home / 16,831.47-25,253.69-6,440.79

Finding the Fourth Proportional to 16,831.47, 25,253.69 and 6,440.79

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Solution

The fourth proportional to 16,831.47, 25,253.69 and 6,440.79 is: 9,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,831.47 : 25,253.69 = 6,440.79 : x
  2. Step 2: Convert to fraction form
    16,831.47/25,253.69 = 6,440.79/x
  3. Step 3: Cross multiply
    16,831.47x = 25,253.69 × 6,440.79
  4. Step 4: Simplify right side
    16,831.47x = 162,653,681.81
  5. Step 5: Solve for x
    x = 162,653,681.81/16,831.47
  6. Step 6: Final answer
    x = 9,663.66

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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.