Home / 15,574.85-21,496.08-9,287.63

Finding the Fourth Proportional to 15,574.85, 21,496.08 and 9,287.63

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Solution

The fourth proportional to 15,574.85, 21,496.08 and 9,287.63 is: 12,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574.85 : 21,496.08 = 9,287.63 : x
  2. Step 2: Convert to fraction form
    15,574.85/21,496.08 = 9,287.63/x
  3. Step 3: Cross multiply
    15,574.85x = 21,496.08 × 9,287.63
  4. Step 4: Simplify right side
    15,574.85x = 199,647,483.57
  5. Step 5: Solve for x
    x = 199,647,483.57/15,574.85
  6. Step 6: Final answer
    x = 12,818.59

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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.