Home / 11,127.40-16,658.70-9,831.40

Finding the Fourth Proportional to 11,127.40, 16,658.70 and 9,831.40

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Solution

The fourth proportional to 11,127.40, 16,658.70 and 9,831.40 is: 14,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.40 : 16,658.70 = 9,831.40 : x
  2. Step 2: Convert to fraction form
    11,127.40/16,658.70 = 9,831.40/x
  3. Step 3: Cross multiply
    11,127.40x = 16,658.70 × 9,831.40
  4. Step 4: Simplify right side
    11,127.40x = 163,778,343.18
  5. Step 5: Solve for x
    x = 163,778,343.18/11,127.40
  6. Step 6: Final answer
    x = 14,718.47

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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.