Home / 14,421.20-19,895.72-8,756.88

Finding the Fourth Proportional to 14,421.20, 19,895.72 and 8,756.88

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Solution

The fourth proportional to 14,421.20, 19,895.72 and 8,756.88 is: 12,081.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.20 : 19,895.72 = 8,756.88 : x
  2. Step 2: Convert to fraction form
    14,421.20/19,895.72 = 8,756.88/x
  3. Step 3: Cross multiply
    14,421.20x = 19,895.72 × 8,756.88
  4. Step 4: Simplify right side
    14,421.20x = 174,224,432.55
  5. Step 5: Solve for x
    x = 174,224,432.55/14,421.20
  6. Step 6: Final answer
    x = 12,081.13

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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.