Home / 15,749.19-21,727.80-9,032.40

Finding the Fourth Proportional to 15,749.19, 21,727.80 and 9,032.40

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Solution

The fourth proportional to 15,749.19, 21,727.80 and 9,032.40 is: 12,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.19 : 21,727.80 = 9,032.40 : x
  2. Step 2: Convert to fraction form
    15,749.19/21,727.80 = 9,032.40/x
  3. Step 3: Cross multiply
    15,749.19x = 21,727.80 × 9,032.40
  4. Step 4: Simplify right side
    15,749.19x = 196,254,180.72
  5. Step 5: Solve for x
    x = 196,254,180.72/15,749.19
  6. Step 6: Final answer
    x = 12,461.22

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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.