Home / 15,342.90-21,167.64-10,037.40

Finding the Fourth Proportional to 15,342.90, 21,167.64 and 10,037.40

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Solution

The fourth proportional to 15,342.90, 21,167.64 and 10,037.40 is: 13,847.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.90 : 21,167.64 = 10,037.40 : x
  2. Step 2: Convert to fraction form
    15,342.90/21,167.64 = 10,037.40/x
  3. Step 3: Cross multiply
    15,342.90x = 21,167.64 × 10,037.40
  4. Step 4: Simplify right side
    15,342.90x = 212,468,069.74
  5. Step 5: Solve for x
    x = 212,468,069.74/15,342.90
  6. Step 6: Final answer
    x = 13,847.97

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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.