Home / 15,768.81-23,655.64-5,378.13

Finding the Fourth Proportional to 15,768.81, 23,655.64 and 5,378.13

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Solution

The fourth proportional to 15,768.81, 23,655.64 and 5,378.13 is: 8,068.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.81 : 23,655.64 = 5,378.13 : x
  2. Step 2: Convert to fraction form
    15,768.81/23,655.64 = 5,378.13/x
  3. Step 3: Cross multiply
    15,768.81x = 23,655.64 × 5,378.13
  4. Step 4: Simplify right side
    15,768.81x = 127,223,107.15
  5. Step 5: Solve for x
    x = 127,223,107.15/15,768.81
  6. Step 6: Final answer
    x = 8,068.02

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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.