Home / 15,537.47-21,440.12-8,730.41

Finding the Fourth Proportional to 15,537.47, 21,440.12 and 8,730.41

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Solution

The fourth proportional to 15,537.47, 21,440.12 and 8,730.41 is: 12,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.47 : 21,440.12 = 8,730.41 : x
  2. Step 2: Convert to fraction form
    15,537.47/21,440.12 = 8,730.41/x
  3. Step 3: Cross multiply
    15,537.47x = 21,440.12 × 8,730.41
  4. Step 4: Simplify right side
    15,537.47x = 187,181,048.00
  5. Step 5: Solve for x
    x = 187,181,048.00/15,537.47
  6. Step 6: Final answer
    x = 12,047.07

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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.