Home / 15,703.34-21,670.52-8,533.20

Finding the Fourth Proportional to 15,703.34, 21,670.52 and 8,533.20

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Solution

The fourth proportional to 15,703.34, 21,670.52 and 8,533.20 is: 11,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.34 : 21,670.52 = 8,533.20 : x
  2. Step 2: Convert to fraction form
    15,703.34/21,670.52 = 8,533.20/x
  3. Step 3: Cross multiply
    15,703.34x = 21,670.52 × 8,533.20
  4. Step 4: Simplify right side
    15,703.34x = 184,918,845.97
  5. Step 5: Solve for x
    x = 184,918,845.97/15,703.34
  6. Step 6: Final answer
    x = 11,775.77

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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.