Home / 15,533.72-21,436.98-8,460.26

Finding the Fourth Proportional to 15,533.72, 21,436.98 and 8,460.26

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Solution

The fourth proportional to 15,533.72, 21,436.98 and 8,460.26 is: 11,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.72 : 21,436.98 = 8,460.26 : x
  2. Step 2: Convert to fraction form
    15,533.72/21,436.98 = 8,460.26/x
  3. Step 3: Cross multiply
    15,533.72x = 21,436.98 × 8,460.26
  4. Step 4: Simplify right side
    15,533.72x = 181,362,424.41
  5. Step 5: Solve for x
    x = 181,362,424.41/15,533.72
  6. Step 6: Final answer
    x = 11,675.40

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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.