Home / 10,438.60-14,407.98-6,457.39

Finding the Fourth Proportional to 10,438.60, 14,407.98 and 6,457.39

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Solution

The fourth proportional to 10,438.60, 14,407.98 and 6,457.39 is: 8,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.60 : 14,407.98 = 6,457.39 : x
  2. Step 2: Convert to fraction form
    10,438.60/14,407.98 = 6,457.39/x
  3. Step 3: Cross multiply
    10,438.60x = 14,407.98 × 6,457.39
  4. Step 4: Simplify right side
    10,438.60x = 93,037,873.93
  5. Step 5: Solve for x
    x = 93,037,873.93/10,438.60
  6. Step 6: Final answer
    x = 8,912.87

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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.