Home / 14,117.80-21,162.30-8,271.40

Finding the Fourth Proportional to 14,117.80, 21,162.30 and 8,271.40

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Solution

The fourth proportional to 14,117.80, 21,162.30 and 8,271.40 is: 12,398.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.80 : 21,162.30 = 8,271.40 : x
  2. Step 2: Convert to fraction form
    14,117.80/21,162.30 = 8,271.40/x
  3. Step 3: Cross multiply
    14,117.80x = 21,162.30 × 8,271.40
  4. Step 4: Simplify right side
    14,117.80x = 175,041,848.22
  5. Step 5: Solve for x
    x = 175,041,848.22/14,117.80
  6. Step 6: Final answer
    x = 12,398.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.