Home / 13,001.58-19,521.81-12,547.98

Finding the Fourth Proportional to 13,001.58, 19,521.81 and 12,547.98

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Solution

The fourth proportional to 13,001.58, 19,521.81 and 12,547.98 is: 18,840.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,001.58 : 19,521.81 = 12,547.98 : x
  2. Step 2: Convert to fraction form
    13,001.58/19,521.81 = 12,547.98/x
  3. Step 3: Cross multiply
    13,001.58x = 19,521.81 × 12,547.98
  4. Step 4: Simplify right side
    13,001.58x = 244,959,281.44
  5. Step 5: Solve for x
    x = 244,959,281.44/13,001.58
  6. Step 6: Final answer
    x = 18,840.73

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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.