Home / 15,311.52-21,126.72-10,014.12

Finding the Fourth Proportional to 15,311.52, 21,126.72 and 10,014.12

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Solution

The fourth proportional to 15,311.52, 21,126.72 and 10,014.12 is: 13,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.52 : 21,126.72 = 10,014.12 : x
  2. Step 2: Convert to fraction form
    15,311.52/21,126.72 = 10,014.12/x
  3. Step 3: Cross multiply
    15,311.52x = 21,126.72 × 10,014.12
  4. Step 4: Simplify right side
    15,311.52x = 211,565,509.29
  5. Step 5: Solve for x
    x = 211,565,509.29/15,311.52
  6. Step 6: Final answer
    x = 13,817.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.