Home / 15,533.94-21,437.08-8,460.36

Finding the Fourth Proportional to 15,533.94, 21,437.08 and 8,460.36

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Solution

The fourth proportional to 15,533.94, 21,437.08 and 8,460.36 is: 11,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.94 : 21,437.08 = 8,460.36 : x
  2. Step 2: Convert to fraction form
    15,533.94/21,437.08 = 8,460.36/x
  3. Step 3: Cross multiply
    15,533.94x = 21,437.08 × 8,460.36
  4. Step 4: Simplify right side
    15,533.94x = 181,365,393.00
  5. Step 5: Solve for x
    x = 181,365,393.00/15,533.94
  6. Step 6: Final answer
    x = 11,675.42

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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.