Home / 10,309.04-14,221.80-6,328.70

Finding the Fourth Proportional to 10,309.04, 14,221.80 and 6,328.70

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Solution

The fourth proportional to 10,309.04, 14,221.80 and 6,328.70 is: 8,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.04 : 14,221.80 = 6,328.70 : x
  2. Step 2: Convert to fraction form
    10,309.04/14,221.80 = 6,328.70/x
  3. Step 3: Cross multiply
    10,309.04x = 14,221.80 × 6,328.70
  4. Step 4: Simplify right side
    10,309.04x = 90,005,434.55
  5. Step 5: Solve for x
    x = 90,005,434.55/10,309.04
  6. Step 6: Final answer
    x = 8,730.73

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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.