Home / 15,647.86-21,594.13-8,574.53

Finding the Fourth Proportional to 15,647.86, 21,594.13 and 8,574.53

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Solution

The fourth proportional to 15,647.86, 21,594.13 and 8,574.53 is: 11,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.86 : 21,594.13 = 8,574.53 : x
  2. Step 2: Convert to fraction form
    15,647.86/21,594.13 = 8,574.53/x
  3. Step 3: Cross multiply
    15,647.86x = 21,594.13 × 8,574.53
  4. Step 4: Simplify right side
    15,647.86x = 185,159,548.06
  5. Step 5: Solve for x
    x = 185,159,548.06/15,647.86
  6. Step 6: Final answer
    x = 11,832.90

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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.