Home / 15,442.02-21,309.69-8,727.51

Finding the Fourth Proportional to 15,442.02, 21,309.69 and 8,727.51

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Solution

The fourth proportional to 15,442.02, 21,309.69 and 8,727.51 is: 12,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.02 : 21,309.69 = 8,727.51 : x
  2. Step 2: Convert to fraction form
    15,442.02/21,309.69 = 8,727.51/x
  3. Step 3: Cross multiply
    15,442.02x = 21,309.69 × 8,727.51
  4. Step 4: Simplify right side
    15,442.02x = 185,980,532.57
  5. Step 5: Solve for x
    x = 185,980,532.57/15,442.02
  6. Step 6: Final answer
    x = 12,043.80

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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.