Home / 14,532.60-21,789-7,509.72

Finding the Fourth Proportional to 14,532.60, 21,789 and 7,509.72

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Solution

The fourth proportional to 14,532.60, 21,789 and 7,509.72 is: 11,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,532.60 : 21,789 = 7,509.72 : x
  2. Step 2: Convert to fraction form
    14,532.60/21,789 = 7,509.72/x
  3. Step 3: Cross multiply
    14,532.60x = 21,789 × 7,509.72
  4. Step 4: Simplify right side
    14,532.60x = 163,629,289.08
  5. Step 5: Solve for x
    x = 163,629,289.08/14,532.60
  6. Step 6: Final answer
    x = 11,259.46

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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.