Home / 14,111.71-19,458.18-9,000.40

Finding the Fourth Proportional to 14,111.71, 19,458.18 and 9,000.40

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Solution

The fourth proportional to 14,111.71, 19,458.18 and 9,000.40 is: 12,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.71 : 19,458.18 = 9,000.40 : x
  2. Step 2: Convert to fraction form
    14,111.71/19,458.18 = 9,000.40/x
  3. Step 3: Cross multiply
    14,111.71x = 19,458.18 × 9,000.40
  4. Step 4: Simplify right side
    14,111.71x = 175,131,305.98
  5. Step 5: Solve for x
    x = 175,131,305.98/14,111.71
  6. Step 6: Final answer
    x = 12,410.36

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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.