Home / 15,240.48-21,031.38-8,526.23

Finding the Fourth Proportional to 15,240.48, 21,031.38 and 8,526.23

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Solution

The fourth proportional to 15,240.48, 21,031.38 and 8,526.23 is: 11,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.48 : 21,031.38 = 8,526.23 : x
  2. Step 2: Convert to fraction form
    15,240.48/21,031.38 = 8,526.23/x
  3. Step 3: Cross multiply
    15,240.48x = 21,031.38 × 8,526.23
  4. Step 4: Simplify right side
    15,240.48x = 179,318,277.94
  5. Step 5: Solve for x
    x = 179,318,277.94/15,240.48
  6. Step 6: Final answer
    x = 11,765.92

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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.