Home / 14,322.28-19,764.12-8,658.40

Finding the Fourth Proportional to 14,322.28, 19,764.12 and 8,658.40

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Solution

The fourth proportional to 14,322.28, 19,764.12 and 8,658.40 is: 11,948.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,322.28 : 19,764.12 = 8,658.40 : x
  2. Step 2: Convert to fraction form
    14,322.28/19,764.12 = 8,658.40/x
  3. Step 3: Cross multiply
    14,322.28x = 19,764.12 × 8,658.40
  4. Step 4: Simplify right side
    14,322.28x = 171,125,656.61
  5. Step 5: Solve for x
    x = 171,125,656.61/14,322.28
  6. Step 6: Final answer
    x = 11,948.21

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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.