Home / 15,703.09-21,670.35-8,533.06

Finding the Fourth Proportional to 15,703.09, 21,670.35 and 8,533.06

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Solution

The fourth proportional to 15,703.09, 21,670.35 and 8,533.06 is: 11,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.09 : 21,670.35 = 8,533.06 : x
  2. Step 2: Convert to fraction form
    15,703.09/21,670.35 = 8,533.06/x
  3. Step 3: Cross multiply
    15,703.09x = 21,670.35 × 8,533.06
  4. Step 4: Simplify right side
    15,703.09x = 184,914,342.60
  5. Step 5: Solve for x
    x = 184,914,342.60/15,703.09
  6. Step 6: Final answer
    x = 11,775.67

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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.