Home / 15,289.34-21,097.41-9,000.50

Finding the Fourth Proportional to 15,289.34, 21,097.41 and 9,000.50

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Solution

The fourth proportional to 15,289.34, 21,097.41 and 9,000.50 is: 12,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.34 : 21,097.41 = 9,000.50 : x
  2. Step 2: Convert to fraction form
    15,289.34/21,097.41 = 9,000.50/x
  3. Step 3: Cross multiply
    15,289.34x = 21,097.41 × 9,000.50
  4. Step 4: Simplify right side
    15,289.34x = 189,887,238.71
  5. Step 5: Solve for x
    x = 189,887,238.71/15,289.34
  6. Step 6: Final answer
    x = 12,419.58

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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.