Home / 15,419.74-21,276.93-9,043.93

Finding the Fourth Proportional to 15,419.74, 21,276.93 and 9,043.93

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Solution

The fourth proportional to 15,419.74, 21,276.93 and 9,043.93 is: 12,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.74 : 21,276.93 = 9,043.93 : x
  2. Step 2: Convert to fraction form
    15,419.74/21,276.93 = 9,043.93/x
  3. Step 3: Cross multiply
    15,419.74x = 21,276.93 × 9,043.93
  4. Step 4: Simplify right side
    15,419.74x = 192,427,006.36
  5. Step 5: Solve for x
    x = 192,427,006.36/15,419.74
  6. Step 6: Final answer
    x = 12,479.26

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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.