Home / 13,332.07-18,400.62-7,666.38

Finding the Fourth Proportional to 13,332.07, 18,400.62 and 7,666.38

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Solution

The fourth proportional to 13,332.07, 18,400.62 and 7,666.38 is: 10,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.07 : 18,400.62 = 7,666.38 : x
  2. Step 2: Convert to fraction form
    13,332.07/18,400.62 = 7,666.38/x
  3. Step 3: Cross multiply
    13,332.07x = 18,400.62 × 7,666.38
  4. Step 4: Simplify right side
    13,332.07x = 141,066,106.82
  5. Step 5: Solve for x
    x = 141,066,106.82/13,332.07
  6. Step 6: Final answer
    x = 10,580.96

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Half scale
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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.