Home / 15,313.36-21,127.80-8,598.28

Finding the Fourth Proportional to 15,313.36, 21,127.80 and 8,598.28

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Solution

The fourth proportional to 15,313.36, 21,127.80 and 8,598.28 is: 11,863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.36 : 21,127.80 = 8,598.28 : x
  2. Step 2: Convert to fraction form
    15,313.36/21,127.80 = 8,598.28/x
  3. Step 3: Cross multiply
    15,313.36x = 21,127.80 × 8,598.28
  4. Step 4: Simplify right side
    15,313.36x = 181,662,740.18
  5. Step 5: Solve for x
    x = 181,662,740.18/15,313.36
  6. Step 6: Final answer
    x = 11,863.02

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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.