Home / 15,557.08-21,468.36-8,483.64

Finding the Fourth Proportional to 15,557.08, 21,468.36 and 8,483.64

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Solution

The fourth proportional to 15,557.08, 21,468.36 and 8,483.64 is: 11,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.08 : 21,468.36 = 8,483.64 : x
  2. Step 2: Convert to fraction form
    15,557.08/21,468.36 = 8,483.64/x
  3. Step 3: Cross multiply
    15,557.08x = 21,468.36 × 8,483.64
  4. Step 4: Simplify right side
    15,557.08x = 182,129,837.63
  5. Step 5: Solve for x
    x = 182,129,837.63/15,557.08
  6. Step 6: Final answer
    x = 11,707.20

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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.