Home / 15,533.30-21,436.04-8,459.91

Finding the Fourth Proportional to 15,533.30, 21,436.04 and 8,459.91

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Solution

The fourth proportional to 15,533.30, 21,436.04 and 8,459.91 is: 11,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.30 : 21,436.04 = 8,459.91 : x
  2. Step 2: Convert to fraction form
    15,533.30/21,436.04 = 8,459.91/x
  3. Step 3: Cross multiply
    15,533.30x = 21,436.04 × 8,459.91
  4. Step 4: Simplify right side
    15,533.30x = 181,346,990.31
  5. Step 5: Solve for x
    x = 181,346,990.31/15,533.30
  6. Step 6: Final answer
    x = 11,674.72

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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.