Home / 15,590.02-21,513.40-8,515.06

Finding the Fourth Proportional to 15,590.02, 21,513.40 and 8,515.06

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Solution

The fourth proportional to 15,590.02, 21,513.40 and 8,515.06 is: 11,750.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,590.02 : 21,513.40 = 8,515.06 : x
  2. Step 2: Convert to fraction form
    15,590.02/21,513.40 = 8,515.06/x
  3. Step 3: Cross multiply
    15,590.02x = 21,513.40 × 8,515.06
  4. Step 4: Simplify right side
    15,590.02x = 183,187,891.80
  5. Step 5: Solve for x
    x = 183,187,891.80/15,590.02
  6. Step 6: Final answer
    x = 11,750.33

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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.