Home / 11,117.49-15,343.47-6,401.67

Finding the Fourth Proportional to 11,117.49, 15,343.47 and 6,401.67

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Solution

The fourth proportional to 11,117.49, 15,343.47 and 6,401.67 is: 8,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.49 : 15,343.47 = 6,401.67 : x
  2. Step 2: Convert to fraction form
    11,117.49/15,343.47 = 6,401.67/x
  3. Step 3: Cross multiply
    11,117.49x = 15,343.47 × 6,401.67
  4. Step 4: Simplify right side
    11,117.49x = 98,223,831.59
  5. Step 5: Solve for x
    x = 98,223,831.59/11,117.49
  6. Step 6: Final answer
    x = 8,835.07

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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.