Home / 15,548.74-21,457.20-8,475.14

Finding the Fourth Proportional to 15,548.74, 21,457.20 and 8,475.14

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Solution

The fourth proportional to 15,548.74, 21,457.20 and 8,475.14 is: 11,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.74 : 21,457.20 = 8,475.14 : x
  2. Step 2: Convert to fraction form
    15,548.74/21,457.20 = 8,475.14/x
  3. Step 3: Cross multiply
    15,548.74x = 21,457.20 × 8,475.14
  4. Step 4: Simplify right side
    15,548.74x = 181,852,774.01
  5. Step 5: Solve for x
    x = 181,852,774.01/15,548.74
  6. Step 6: Final answer
    x = 11,695.66

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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.