Home / 25,215.60-37,823.40-7,686.30

Finding the Fourth Proportional to 25,215.60, 37,823.40 and 7,686.30

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Solution

The fourth proportional to 25,215.60, 37,823.40 and 7,686.30 is: 11,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,215.60 : 37,823.40 = 7,686.30 : x
  2. Step 2: Convert to fraction form
    25,215.60/37,823.40 = 7,686.30/x
  3. Step 3: Cross multiply
    25,215.60x = 37,823.40 × 7,686.30
  4. Step 4: Simplify right side
    25,215.60x = 290,721,999.42
  5. Step 5: Solve for x
    x = 290,721,999.42/25,215.60
  6. Step 6: Final answer
    x = 11,529.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.