Home / 14,853.90-20,498.36-8,139.95

Finding the Fourth Proportional to 14,853.90, 20,498.36 and 8,139.95

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Solution

The fourth proportional to 14,853.90, 20,498.36 and 8,139.95 is: 11,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,853.90 : 20,498.36 = 8,139.95 : x
  2. Step 2: Convert to fraction form
    14,853.90/20,498.36 = 8,139.95/x
  3. Step 3: Cross multiply
    14,853.90x = 20,498.36 × 8,139.95
  4. Step 4: Simplify right side
    14,853.90x = 166,855,482.29
  5. Step 5: Solve for x
    x = 166,855,482.29/14,853.90
  6. Step 6: Final answer
    x = 11,233.11

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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.