Home / 15,585.72-21,511.10-9,298.52

Finding the Fourth Proportional to 15,585.72, 21,511.10 and 9,298.52

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Solution

The fourth proportional to 15,585.72, 21,511.10 and 9,298.52 is: 12,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.72 : 21,511.10 = 9,298.52 : x
  2. Step 2: Convert to fraction form
    15,585.72/21,511.10 = 9,298.52/x
  3. Step 3: Cross multiply
    15,585.72x = 21,511.10 × 9,298.52
  4. Step 4: Simplify right side
    15,585.72x = 200,021,393.57
  5. Step 5: Solve for x
    x = 200,021,393.57/15,585.72
  6. Step 6: Final answer
    x = 12,833.63

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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.