Home / 14,439.87-19,917.32-10,864.13

Finding the Fourth Proportional to 14,439.87, 19,917.32 and 10,864.13

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Solution

The fourth proportional to 14,439.87, 19,917.32 and 10,864.13 is: 14,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.87 : 19,917.32 = 10,864.13 : x
  2. Step 2: Convert to fraction form
    14,439.87/19,917.32 = 10,864.13/x
  3. Step 3: Cross multiply
    14,439.87x = 19,917.32 × 10,864.13
  4. Step 4: Simplify right side
    14,439.87x = 216,384,199.82
  5. Step 5: Solve for x
    x = 216,384,199.82/14,439.87
  6. Step 6: Final answer
    x = 14,985.19

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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.