Home / 13,261.04-19,890.50-7,710.84

Finding the Fourth Proportional to 13,261.04, 19,890.50 and 7,710.84

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Solution

The fourth proportional to 13,261.04, 19,890.50 and 7,710.84 is: 11,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.04 : 19,890.50 = 7,710.84 : x
  2. Step 2: Convert to fraction form
    13,261.04/19,890.50 = 7,710.84/x
  3. Step 3: Cross multiply
    13,261.04x = 19,890.50 × 7,710.84
  4. Step 4: Simplify right side
    13,261.04x = 153,372,424.47
  5. Step 5: Solve for x
    x = 153,372,424.47/13,261.04
  6. Step 6: Final answer
    x = 11,565.65

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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.