Home / 14,064.12-19,434.15-13,380.90

Finding the Fourth Proportional to 14,064.12, 19,434.15 and 13,380.90

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Solution

The fourth proportional to 14,064.12, 19,434.15 and 13,380.90 is: 18,490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.12 : 19,434.15 = 13,380.90 : x
  2. Step 2: Convert to fraction form
    14,064.12/19,434.15 = 13,380.90/x
  3. Step 3: Cross multiply
    14,064.12x = 19,434.15 × 13,380.90
  4. Step 4: Simplify right side
    14,064.12x = 260,046,417.74
  5. Step 5: Solve for x
    x = 260,046,417.74/14,064.12
  6. Step 6: Final answer
    x = 18,490.06

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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.