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Finding the Fourth Proportional to 9,837.40, 14,756.10 and 8,865.40

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Solution

The fourth proportional to 9,837.40, 14,756.10 and 8,865.40 is: 13,298.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,837.40 : 14,756.10 = 8,865.40 : x
  2. Step 2: Convert to fraction form
    9,837.40/14,756.10 = 8,865.40/x
  3. Step 3: Cross multiply
    9,837.40x = 14,756.10 × 8,865.40
  4. Step 4: Simplify right side
    9,837.40x = 130,818,728.94
  5. Step 5: Solve for x
    x = 130,818,728.94/9,837.40
  6. Step 6: Final answer
    x = 13,298.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.