Home / 15,928.16-21,970.68-10,270.16

Finding the Fourth Proportional to 15,928.16, 21,970.68 and 10,270.16

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Solution

The fourth proportional to 15,928.16, 21,970.68 and 10,270.16 is: 14,166.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,928.16 : 21,970.68 = 10,270.16 : x
  2. Step 2: Convert to fraction form
    15,928.16/21,970.68 = 10,270.16/x
  3. Step 3: Cross multiply
    15,928.16x = 21,970.68 × 10,270.16
  4. Step 4: Simplify right side
    15,928.16x = 225,642,398.91
  5. Step 5: Solve for x
    x = 225,642,398.91/15,928.16
  6. Step 6: Final answer
    x = 14,166.26

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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.