Home / 15,419.06-21,276.02-9,043.24

Finding the Fourth Proportional to 15,419.06, 21,276.02 and 9,043.24

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Solution

The fourth proportional to 15,419.06, 21,276.02 and 9,043.24 is: 12,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.06 : 21,276.02 = 9,043.24 : x
  2. Step 2: Convert to fraction form
    15,419.06/21,276.02 = 9,043.24/x
  3. Step 3: Cross multiply
    15,419.06x = 21,276.02 × 9,043.24
  4. Step 4: Simplify right side
    15,419.06x = 192,404,155.10
  5. Step 5: Solve for x
    x = 192,404,155.10/15,419.06
  6. Step 6: Final answer
    x = 12,478.33

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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.