Home / 16,987.78-23,443.75-9,434.24

Finding the Fourth Proportional to 16,987.78, 23,443.75 and 9,434.24

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Solution

The fourth proportional to 16,987.78, 23,443.75 and 9,434.24 is: 13,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.78 : 23,443.75 = 9,434.24 : x
  2. Step 2: Convert to fraction form
    16,987.78/23,443.75 = 9,434.24/x
  3. Step 3: Cross multiply
    16,987.78x = 23,443.75 × 9,434.24
  4. Step 4: Simplify right side
    16,987.78x = 221,173,964
  5. Step 5: Solve for x
    x = 221,173,964/16,987.78
  6. Step 6: Final answer
    x = 13,019.59

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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.