Home / 15,987.40-23,977.00-4,740.10

Finding the Fourth Proportional to 15,987.40, 23,977.00 and 4,740.10

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Solution

The fourth proportional to 15,987.40, 23,977.00 and 4,740.10 is: 7,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.40 : 23,977.00 = 4,740.10 : x
  2. Step 2: Convert to fraction form
    15,987.40/23,977.00 = 4,740.10/x
  3. Step 3: Cross multiply
    15,987.40x = 23,977.00 × 4,740.10
  4. Step 4: Simplify right side
    15,987.40x = 113,653,487.17
  5. Step 5: Solve for x
    x = 113,653,487.17/15,987.40
  6. Step 6: Final answer
    x = 7,108.94

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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.