Home / 14,341.80-21,515.38-4,478.70

Finding the Fourth Proportional to 14,341.80, 21,515.38 and 4,478.70

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Solution

The fourth proportional to 14,341.80, 21,515.38 and 4,478.70 is: 6,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,341.80 : 21,515.38 = 4,478.70 : x
  2. Step 2: Convert to fraction form
    14,341.80/21,515.38 = 4,478.70/x
  3. Step 3: Cross multiply
    14,341.80x = 21,515.38 × 4,478.70
  4. Step 4: Simplify right side
    14,341.80x = 96,360,932.41
  5. Step 5: Solve for x
    x = 96,360,932.41/14,341.80
  6. Step 6: Final answer
    x = 6,718.89

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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.