Home / 15,411.24-21,267.36-8,337.51

Finding the Fourth Proportional to 15,411.24, 21,267.36 and 8,337.51

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Solution

The fourth proportional to 15,411.24, 21,267.36 and 8,337.51 is: 11,505.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.24 : 21,267.36 = 8,337.51 : x
  2. Step 2: Convert to fraction form
    15,411.24/21,267.36 = 8,337.51/x
  3. Step 3: Cross multiply
    15,411.24x = 21,267.36 × 8,337.51
  4. Step 4: Simplify right side
    15,411.24x = 177,316,826.67
  5. Step 5: Solve for x
    x = 177,316,826.67/15,411.24
  6. Step 6: Final answer
    x = 11,505.68

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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.