Home / 15,460.72-21,335.79-8,746.21

Finding the Fourth Proportional to 15,460.72, 21,335.79 and 8,746.21

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Solution

The fourth proportional to 15,460.72, 21,335.79 and 8,746.21 is: 12,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.72 : 21,335.79 = 8,746.21 : x
  2. Step 2: Convert to fraction form
    15,460.72/21,335.79 = 8,746.21/x
  3. Step 3: Cross multiply
    15,460.72x = 21,335.79 × 8,746.21
  4. Step 4: Simplify right side
    15,460.72x = 186,607,193.18
  5. Step 5: Solve for x
    x = 186,607,193.18/15,460.72
  6. Step 6: Final answer
    x = 12,069.76

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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.