Home / 15,533.27-21,436.16-8,459.69

Finding the Fourth Proportional to 15,533.27, 21,436.16 and 8,459.69

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Solution

The fourth proportional to 15,533.27, 21,436.16 and 8,459.69 is: 11,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.27 : 21,436.16 = 8,459.69 : x
  2. Step 2: Convert to fraction form
    15,533.27/21,436.16 = 8,459.69/x
  3. Step 3: Cross multiply
    15,533.27x = 21,436.16 × 8,459.69
  4. Step 4: Simplify right side
    15,533.27x = 181,343,118.91
  5. Step 5: Solve for x
    x = 181,343,118.91/15,533.27
  6. Step 6: Final answer
    x = 11,674.50

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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.