Home / 15,588.32-21,510.84-8,514.72

Finding the Fourth Proportional to 15,588.32, 21,510.84 and 8,514.72

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Solution

The fourth proportional to 15,588.32, 21,510.84 and 8,514.72 is: 11,749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,588.32 : 21,510.84 = 8,514.72 : x
  2. Step 2: Convert to fraction form
    15,588.32/21,510.84 = 8,514.72/x
  3. Step 3: Cross multiply
    15,588.32x = 21,510.84 × 8,514.72
  4. Step 4: Simplify right side
    15,588.32x = 183,158,779.56
  5. Step 5: Solve for x
    x = 183,158,779.56/15,588.32
  6. Step 6: Final answer
    x = 11,749.74

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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.