Home / 8,417.79-12,637.62-6,471.36

Finding the Fourth Proportional to 8,417.79, 12,637.62 and 6,471.36

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Solution

The fourth proportional to 8,417.79, 12,637.62 and 6,471.36 is: 9,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.79 : 12,637.62 = 6,471.36 : x
  2. Step 2: Convert to fraction form
    8,417.79/12,637.62 = 6,471.36/x
  3. Step 3: Cross multiply
    8,417.79x = 12,637.62 × 6,471.36
  4. Step 4: Simplify right side
    8,417.79x = 81,782,588.56
  5. Step 5: Solve for x
    x = 81,782,588.56/8,417.79
  6. Step 6: Final answer
    x = 9,715.45

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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.