Home / 13,332.78-18,397.80-7,364.16

Finding the Fourth Proportional to 13,332.78, 18,397.80 and 7,364.16

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Solution

The fourth proportional to 13,332.78, 18,397.80 and 7,364.16 is: 10,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.78 : 18,397.80 = 7,364.16 : x
  2. Step 2: Convert to fraction form
    13,332.78/18,397.80 = 7,364.16/x
  3. Step 3: Cross multiply
    13,332.78x = 18,397.80 × 7,364.16
  4. Step 4: Simplify right side
    13,332.78x = 135,484,342.85
  5. Step 5: Solve for x
    x = 135,484,342.85/13,332.78
  6. Step 6: Final answer
    x = 10,161.75

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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.