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Finding the Fourth Proportional to 8,588.40, 12,948.84 and 8,535.10

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Solution

The fourth proportional to 8,588.40, 12,948.84 and 8,535.10 is: 12,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.40 : 12,948.84 = 8,535.10 : x
  2. Step 2: Convert to fraction form
    8,588.40/12,948.84 = 8,535.10/x
  3. Step 3: Cross multiply
    8,588.40x = 12,948.84 × 8,535.10
  4. Step 4: Simplify right side
    8,588.40x = 110,519,575.77
  5. Step 5: Solve for x
    x = 110,519,575.77/8,588.40
  6. Step 6: Final answer
    x = 12,868.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.