Home / 15,239.08-21,031.04-8,526.87

Finding the Fourth Proportional to 15,239.08, 21,031.04 and 8,526.87

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Solution

The fourth proportional to 15,239.08, 21,031.04 and 8,526.87 is: 11,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.08 : 21,031.04 = 8,526.87 : x
  2. Step 2: Convert to fraction form
    15,239.08/21,031.04 = 8,526.87/x
  3. Step 3: Cross multiply
    15,239.08x = 21,031.04 × 8,526.87
  4. Step 4: Simplify right side
    15,239.08x = 179,328,965.36
  5. Step 5: Solve for x
    x = 179,328,965.36/15,239.08
  6. Step 6: Final answer
    x = 11,767.70

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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.