Home / 11,118.69-15,332.13-7,336.89

Finding the Fourth Proportional to 11,118.69, 15,332.13 and 7,336.89

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Solution

The fourth proportional to 11,118.69, 15,332.13 and 7,336.89 is: 10,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.69 : 15,332.13 = 7,336.89 : x
  2. Step 2: Convert to fraction form
    11,118.69/15,332.13 = 7,336.89/x
  3. Step 3: Cross multiply
    11,118.69x = 15,332.13 × 7,336.89
  4. Step 4: Simplify right side
    11,118.69x = 112,490,151.28
  5. Step 5: Solve for x
    x = 112,490,151.28/11,118.69
  6. Step 6: Final answer
    x = 10,117.21

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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.