Home / 14,389.58-19,863.02-10,642.91

Finding the Fourth Proportional to 14,389.58, 19,863.02 and 10,642.91

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Solution

The fourth proportional to 14,389.58, 19,863.02 and 10,642.91 is: 14,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.58 : 19,863.02 = 10,642.91 : x
  2. Step 2: Convert to fraction form
    14,389.58/19,863.02 = 10,642.91/x
  3. Step 3: Cross multiply
    14,389.58x = 19,863.02 × 10,642.91
  4. Step 4: Simplify right side
    14,389.58x = 211,400,261.48
  5. Step 5: Solve for x
    x = 211,400,261.48/14,389.58
  6. Step 6: Final answer
    x = 14,691.20

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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.