Home / 15,871.04-21,903.45-10,219.29

Finding the Fourth Proportional to 15,871.04, 21,903.45 and 10,219.29

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Solution

The fourth proportional to 15,871.04, 21,903.45 and 10,219.29 is: 14,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.04 : 21,903.45 = 10,219.29 : x
  2. Step 2: Convert to fraction form
    15,871.04/21,903.45 = 10,219.29/x
  3. Step 3: Cross multiply
    15,871.04x = 21,903.45 × 10,219.29
  4. Step 4: Simplify right side
    15,871.04x = 223,837,707.55
  5. Step 5: Solve for x
    x = 223,837,707.55/15,871.04
  6. Step 6: Final answer
    x = 14,103.53

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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.