Home / 15,395.84-21,236.13-10,615.98

Finding the Fourth Proportional to 15,395.84, 21,236.13 and 10,615.98

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Solution

The fourth proportional to 15,395.84, 21,236.13 and 10,615.98 is: 14,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395.84 : 21,236.13 = 10,615.98 : x
  2. Step 2: Convert to fraction form
    15,395.84/21,236.13 = 10,615.98/x
  3. Step 3: Cross multiply
    15,395.84x = 21,236.13 × 10,615.98
  4. Step 4: Simplify right side
    15,395.84x = 225,442,331.36
  5. Step 5: Solve for x
    x = 225,442,331.36/15,395.84
  6. Step 6: Final answer
    x = 14,643.07

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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.