Home / 15,756.34-21,744.23-9,043.19

Finding the Fourth Proportional to 15,756.34, 21,744.23 and 9,043.19

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Solution

The fourth proportional to 15,756.34, 21,744.23 and 9,043.19 is: 12,479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.34 : 21,744.23 = 9,043.19 : x
  2. Step 2: Convert to fraction form
    15,756.34/21,744.23 = 9,043.19/x
  3. Step 3: Cross multiply
    15,756.34x = 21,744.23 × 9,043.19
  4. Step 4: Simplify right side
    15,756.34x = 196,637,203.29
  5. Step 5: Solve for x
    x = 196,637,203.29/15,756.34
  6. Step 6: Final answer
    x = 12,479.88

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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.