Home / 14,430.64-19,913.88-8,143.60

Finding the Fourth Proportional to 14,430.64, 19,913.88 and 8,143.60

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Solution

The fourth proportional to 14,430.64, 19,913.88 and 8,143.60 is: 11,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,430.64 : 19,913.88 = 8,143.60 : x
  2. Step 2: Convert to fraction form
    14,430.64/19,913.88 = 8,143.60/x
  3. Step 3: Cross multiply
    14,430.64x = 19,913.88 × 8,143.60
  4. Step 4: Simplify right side
    14,430.64x = 162,170,673.17
  5. Step 5: Solve for x
    x = 162,170,673.17/14,430.64
  6. Step 6: Final answer
    x = 11,237.94

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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.