Home / 15,642.37-21,582.17-8,925.58

Finding the Fourth Proportional to 15,642.37, 21,582.17 and 8,925.58

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Solution

The fourth proportional to 15,642.37, 21,582.17 and 8,925.58 is: 12,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.37 : 21,582.17 = 8,925.58 : x
  2. Step 2: Convert to fraction form
    15,642.37/21,582.17 = 8,925.58/x
  3. Step 3: Cross multiply
    15,642.37x = 21,582.17 × 8,925.58
  4. Step 4: Simplify right side
    15,642.37x = 192,633,319.80
  5. Step 5: Solve for x
    x = 192,633,319.80/15,642.37
  6. Step 6: Final answer
    x = 12,314.84

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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.