Home / 15,325.52-21,145.51-8,948.50

Finding the Fourth Proportional to 15,325.52, 21,145.51 and 8,948.50

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Solution

The fourth proportional to 15,325.52, 21,145.51 and 8,948.50 is: 12,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.52 : 21,145.51 = 8,948.50 : x
  2. Step 2: Convert to fraction form
    15,325.52/21,145.51 = 8,948.50/x
  3. Step 3: Cross multiply
    15,325.52x = 21,145.51 × 8,948.50
  4. Step 4: Simplify right side
    15,325.52x = 189,220,596.24
  5. Step 5: Solve for x
    x = 189,220,596.24/15,325.52
  6. Step 6: Final answer
    x = 12,346.77

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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.