Home / 15,251.02-21,045.43-8,535.51

Finding the Fourth Proportional to 15,251.02, 21,045.43 and 8,535.51

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Solution

The fourth proportional to 15,251.02, 21,045.43 and 8,535.51 is: 11,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.02 : 21,045.43 = 8,535.51 : x
  2. Step 2: Convert to fraction form
    15,251.02/21,045.43 = 8,535.51/x
  3. Step 3: Cross multiply
    15,251.02x = 21,045.43 × 8,535.51
  4. Step 4: Simplify right side
    15,251.02x = 179,633,478.22
  5. Step 5: Solve for x
    x = 179,633,478.22/15,251.02
  6. Step 6: Final answer
    x = 11,778.46

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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.