Home / 15,528.04-21,427.98-8,454.44

Finding the Fourth Proportional to 15,528.04, 21,427.98 and 8,454.44

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Solution

The fourth proportional to 15,528.04, 21,427.98 and 8,454.44 is: 11,666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528.04 : 21,427.98 = 8,454.44 : x
  2. Step 2: Convert to fraction form
    15,528.04/21,427.98 = 8,454.44/x
  3. Step 3: Cross multiply
    15,528.04x = 21,427.98 × 8,454.44
  4. Step 4: Simplify right side
    15,528.04x = 181,161,571.23
  5. Step 5: Solve for x
    x = 181,161,571.23/15,528.04
  6. Step 6: Final answer
    x = 11,666.74

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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.