Home / 15,307.24-21,126.30-9,342.37

Finding the Fourth Proportional to 15,307.24, 21,126.30 and 9,342.37

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Solution

The fourth proportional to 15,307.24, 21,126.30 and 9,342.37 is: 12,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.24 : 21,126.30 = 9,342.37 : x
  2. Step 2: Convert to fraction form
    15,307.24/21,126.30 = 9,342.37/x
  3. Step 3: Cross multiply
    15,307.24x = 21,126.30 × 9,342.37
  4. Step 4: Simplify right side
    15,307.24x = 197,369,623.48
  5. Step 5: Solve for x
    x = 197,369,623.48/15,307.24
  6. Step 6: Final answer
    x = 12,893.88

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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.