Home / 14,282.04-21,423.10-8,430.60

Finding the Fourth Proportional to 14,282.04, 21,423.10 and 8,430.60

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Solution

The fourth proportional to 14,282.04, 21,423.10 and 8,430.60 is: 12,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.04 : 21,423.10 = 8,430.60 : x
  2. Step 2: Convert to fraction form
    14,282.04/21,423.10 = 8,430.60/x
  3. Step 3: Cross multiply
    14,282.04x = 21,423.10 × 8,430.60
  4. Step 4: Simplify right side
    14,282.04x = 180,609,586.86
  5. Step 5: Solve for x
    x = 180,609,586.86/14,282.04
  6. Step 6: Final answer
    x = 12,645.92

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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.