Home / 15,444.10-21,313.02-8,729.80

Finding the Fourth Proportional to 15,444.10, 21,313.02 and 8,729.80

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Solution

The fourth proportional to 15,444.10, 21,313.02 and 8,729.80 is: 12,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.10 : 21,313.02 = 8,729.80 : x
  2. Step 2: Convert to fraction form
    15,444.10/21,313.02 = 8,729.80/x
  3. Step 3: Cross multiply
    15,444.10x = 21,313.02 × 8,729.80
  4. Step 4: Simplify right side
    15,444.10x = 186,058,402.00
  5. Step 5: Solve for x
    x = 186,058,402.00/15,444.10
  6. Step 6: Final answer
    x = 12,047.22

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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.