Home / 14,105.76-19,455.84-9,320.16

Finding the Fourth Proportional to 14,105.76, 19,455.84 and 9,320.16

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Solution

The fourth proportional to 14,105.76, 19,455.84 and 9,320.16 is: 12,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.76 : 19,455.84 = 9,320.16 : x
  2. Step 2: Convert to fraction form
    14,105.76/19,455.84 = 9,320.16/x
  3. Step 3: Cross multiply
    14,105.76x = 19,455.84 × 9,320.16
  4. Step 4: Simplify right side
    14,105.76x = 181,331,541.73
  5. Step 5: Solve for x
    x = 181,331,541.73/14,105.76
  6. Step 6: Final answer
    x = 12,855.14

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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.