Home / 15,703.47-21,670.88-8,533.44

Finding the Fourth Proportional to 15,703.47, 21,670.88 and 8,533.44

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Solution

The fourth proportional to 15,703.47, 21,670.88 and 8,533.44 is: 11,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.47 : 21,670.88 = 8,533.44 : x
  2. Step 2: Convert to fraction form
    15,703.47/21,670.88 = 8,533.44/x
  3. Step 3: Cross multiply
    15,703.47x = 21,670.88 × 8,533.44
  4. Step 4: Simplify right side
    15,703.47x = 184,927,111.56
  5. Step 5: Solve for x
    x = 184,927,111.56/15,703.47
  6. Step 6: Final answer
    x = 11,776.19

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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.