Home / 14,000.80-19,251.12-13,417.60

Finding the Fourth Proportional to 14,000.80, 19,251.12 and 13,417.60

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Solution

The fourth proportional to 14,000.80, 19,251.12 and 13,417.60 is: 18,449.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.80 : 19,251.12 = 13,417.60 : x
  2. Step 2: Convert to fraction form
    14,000.80/19,251.12 = 13,417.60/x
  3. Step 3: Cross multiply
    14,000.80x = 19,251.12 × 13,417.60
  4. Step 4: Simplify right side
    14,000.80x = 258,303,827.71
  5. Step 5: Solve for x
    x = 258,303,827.71/14,000.80
  6. Step 6: Final answer
    x = 18,449.22

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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.