Home / 15,666.16-21,619.28-8,592.70

Finding the Fourth Proportional to 15,666.16, 21,619.28 and 8,592.70

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Solution

The fourth proportional to 15,666.16, 21,619.28 and 8,592.70 is: 11,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,666.16 : 21,619.28 = 8,592.70 : x
  2. Step 2: Convert to fraction form
    15,666.16/21,619.28 = 8,592.70/x
  3. Step 3: Cross multiply
    15,666.16x = 21,619.28 × 8,592.70
  4. Step 4: Simplify right side
    15,666.16x = 185,767,987.26
  5. Step 5: Solve for x
    x = 185,767,987.26/15,666.16
  6. Step 6: Final answer
    x = 11,857.91

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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.