Home / 14,390.46-21,585.69-6,988.58

Finding the Fourth Proportional to 14,390.46, 21,585.69 and 6,988.58

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Solution

The fourth proportional to 14,390.46, 21,585.69 and 6,988.58 is: 10,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.46 : 21,585.69 = 6,988.58 : x
  2. Step 2: Convert to fraction form
    14,390.46/21,585.69 = 6,988.58/x
  3. Step 3: Cross multiply
    14,390.46x = 21,585.69 × 6,988.58
  4. Step 4: Simplify right side
    14,390.46x = 150,853,213.49
  5. Step 5: Solve for x
    x = 150,853,213.49/14,390.46
  6. Step 6: Final answer
    x = 10,482.86

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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.