Home / 9,818.32-13,561.08-7,161.52

Finding the Fourth Proportional to 9,818.32, 13,561.08 and 7,161.52

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Solution

The fourth proportional to 9,818.32, 13,561.08 and 7,161.52 is: 9,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.32 : 13,561.08 = 7,161.52 : x
  2. Step 2: Convert to fraction form
    9,818.32/13,561.08 = 7,161.52/x
  3. Step 3: Cross multiply
    9,818.32x = 13,561.08 × 7,161.52
  4. Step 4: Simplify right side
    9,818.32x = 97,117,945.64
  5. Step 5: Solve for x
    x = 97,117,945.64/9,818.32
  6. Step 6: Final answer
    x = 9,891.50

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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.