Home / 15,402.36-21,255.54-9,032.72

Finding the Fourth Proportional to 15,402.36, 21,255.54 and 9,032.72

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Solution

The fourth proportional to 15,402.36, 21,255.54 and 9,032.72 is: 12,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402.36 : 21,255.54 = 9,032.72 : x
  2. Step 2: Convert to fraction form
    15,402.36/21,255.54 = 9,032.72/x
  3. Step 3: Cross multiply
    15,402.36x = 21,255.54 × 9,032.72
  4. Step 4: Simplify right side
    15,402.36x = 191,995,341.27
  5. Step 5: Solve for x
    x = 191,995,341.27/15,402.36
  6. Step 6: Final answer
    x = 12,465.32

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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.