Home / 15,533.41-21,436.13-8,459.86

Finding the Fourth Proportional to 15,533.41, 21,436.13 and 8,459.86

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Solution

The fourth proportional to 15,533.41, 21,436.13 and 8,459.86 is: 11,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.41 : 21,436.13 = 8,459.86 : x
  2. Step 2: Convert to fraction form
    15,533.41/21,436.13 = 8,459.86/x
  3. Step 3: Cross multiply
    15,533.41x = 21,436.13 × 8,459.86
  4. Step 4: Simplify right side
    15,533.41x = 181,346,658.74
  5. Step 5: Solve for x
    x = 181,346,658.74/15,533.41
  6. Step 6: Final answer
    x = 11,674.62

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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.