Home / 15,312.36-21,126.42-8,597.28

Finding the Fourth Proportional to 15,312.36, 21,126.42 and 8,597.28

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Solution

The fourth proportional to 15,312.36, 21,126.42 and 8,597.28 is: 11,861.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.36 : 21,126.42 = 8,597.28 : x
  2. Step 2: Convert to fraction form
    15,312.36/21,126.42 = 8,597.28/x
  3. Step 3: Cross multiply
    15,312.36x = 21,126.42 × 8,597.28
  4. Step 4: Simplify right side
    15,312.36x = 181,629,748.14
  5. Step 5: Solve for x
    x = 181,629,748.14/15,312.36
  6. Step 6: Final answer
    x = 11,861.64

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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.