Home / 12,285.17-18,429.67-5,265.10

Finding the Fourth Proportional to 12,285.17, 18,429.67 and 5,265.10

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Solution

The fourth proportional to 12,285.17, 18,429.67 and 5,265.10 is: 7,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.17 : 18,429.67 = 5,265.10 : x
  2. Step 2: Convert to fraction form
    12,285.17/18,429.67 = 5,265.10/x
  3. Step 3: Cross multiply
    12,285.17x = 18,429.67 × 5,265.10
  4. Step 4: Simplify right side
    12,285.17x = 97,033,963.37
  5. Step 5: Solve for x
    x = 97,033,963.37/12,285.17
  6. Step 6: Final answer
    x = 7,898.47

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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.