Home / 15,548.70-21,457.13-8,475.06

Finding the Fourth Proportional to 15,548.70, 21,457.13 and 8,475.06

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Solution

The fourth proportional to 15,548.70, 21,457.13 and 8,475.06 is: 11,695.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.70 : 21,457.13 = 8,475.06 : x
  2. Step 2: Convert to fraction form
    15,548.70/21,457.13 = 8,475.06/x
  3. Step 3: Cross multiply
    15,548.70x = 21,457.13 × 8,475.06
  4. Step 4: Simplify right side
    15,548.70x = 181,850,421.80
  5. Step 5: Solve for x
    x = 181,850,421.80/15,548.70
  6. Step 6: Final answer
    x = 11,695.54

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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.