Home / 13,186.63-19,785.12-5,785.93

Finding the Fourth Proportional to 13,186.63, 19,785.12 and 5,785.93

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Solution

The fourth proportional to 13,186.63, 19,785.12 and 5,785.93 is: 8,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.63 : 19,785.12 = 5,785.93 : x
  2. Step 2: Convert to fraction form
    13,186.63/19,785.12 = 5,785.93/x
  3. Step 3: Cross multiply
    13,186.63x = 19,785.12 × 5,785.93
  4. Step 4: Simplify right side
    13,186.63x = 114,475,319.36
  5. Step 5: Solve for x
    x = 114,475,319.36/13,186.63
  6. Step 6: Final answer
    x = 8,681.17

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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.