Home / 15,376.81-23,068.46-4,987.75

Finding the Fourth Proportional to 15,376.81, 23,068.46 and 4,987.75

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Solution

The fourth proportional to 15,376.81, 23,068.46 and 4,987.75 is: 7,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.81 : 23,068.46 = 4,987.75 : x
  2. Step 2: Convert to fraction form
    15,376.81/23,068.46 = 4,987.75/x
  3. Step 3: Cross multiply
    15,376.81x = 23,068.46 × 4,987.75
  4. Step 4: Simplify right side
    15,376.81x = 115,059,711.37
  5. Step 5: Solve for x
    x = 115,059,711.37/15,376.81
  6. Step 6: Final answer
    x = 7,482.68

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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.