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Finding the Fourth Proportional to 8,510.31, 12,708.08 and 6,953.40

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Solution

The fourth proportional to 8,510.31, 12,708.08 and 6,953.40 is: 10,383.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.31 : 12,708.08 = 6,953.40 : x
  2. Step 2: Convert to fraction form
    8,510.31/12,708.08 = 6,953.40/x
  3. Step 3: Cross multiply
    8,510.31x = 12,708.08 × 6,953.40
  4. Step 4: Simplify right side
    8,510.31x = 88,364,328.71
  5. Step 5: Solve for x
    x = 88,364,328.71/8,510.31
  6. Step 6: Final answer
    x = 10,383.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.