Home / 16,889.28-23,307.12-9,437.28

Finding the Fourth Proportional to 16,889.28, 23,307.12 and 9,437.28

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Solution

The fourth proportional to 16,889.28, 23,307.12 and 9,437.28 is: 13,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,889.28 : 23,307.12 = 9,437.28 : x
  2. Step 2: Convert to fraction form
    16,889.28/23,307.12 = 9,437.28/x
  3. Step 3: Cross multiply
    16,889.28x = 23,307.12 × 9,437.28
  4. Step 4: Simplify right side
    16,889.28x = 219,955,817.43
  5. Step 5: Solve for x
    x = 219,955,817.43/16,889.28
  6. Step 6: Final answer
    x = 13,023.40

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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.