Home / 15,548.69-21,457.41-8,475.10

Finding the Fourth Proportional to 15,548.69, 21,457.41 and 8,475.10

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Solution

The fourth proportional to 15,548.69, 21,457.41 and 8,475.10 is: 11,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.69 : 21,457.41 = 8,475.10 : x
  2. Step 2: Convert to fraction form
    15,548.69/21,457.41 = 8,475.10/x
  3. Step 3: Cross multiply
    15,548.69x = 21,457.41 × 8,475.10
  4. Step 4: Simplify right side
    15,548.69x = 181,853,641.85
  5. Step 5: Solve for x
    x = 181,853,641.85/15,548.69
  6. Step 6: Final answer
    x = 11,695.75

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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.