Home / 12,987.84-19,490.40-6,062.88

Finding the Fourth Proportional to 12,987.84, 19,490.40 and 6,062.88

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Solution

The fourth proportional to 12,987.84, 19,490.40 and 6,062.88 is: 9,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987.84 : 19,490.40 = 6,062.88 : x
  2. Step 2: Convert to fraction form
    12,987.84/19,490.40 = 6,062.88/x
  3. Step 3: Cross multiply
    12,987.84x = 19,490.40 × 6,062.88
  4. Step 4: Simplify right side
    12,987.84x = 118,167,956.35
  5. Step 5: Solve for x
    x = 118,167,956.35/12,987.84
  6. Step 6: Final answer
    x = 9,098.35

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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.