Home / 15,534.24-21,429-10,491.72

Finding the Fourth Proportional to 15,534.24, 21,429 and 10,491.72

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Solution

The fourth proportional to 15,534.24, 21,429 and 10,491.72 is: 14,473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,534.24 : 21,429 = 10,491.72 : x
  2. Step 2: Convert to fraction form
    15,534.24/21,429 = 10,491.72/x
  3. Step 3: Cross multiply
    15,534.24x = 21,429 × 10,491.72
  4. Step 4: Simplify right side
    15,534.24x = 224,827,067.88
  5. Step 5: Solve for x
    x = 224,827,067.88/15,534.24
  6. Step 6: Final answer
    x = 14,473.00

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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.