Home / 10,932.79-15,086.81-6,457.98

Finding the Fourth Proportional to 10,932.79, 15,086.81 and 6,457.98

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Solution

The fourth proportional to 10,932.79, 15,086.81 and 6,457.98 is: 8,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,932.79 : 15,086.81 = 6,457.98 : x
  2. Step 2: Convert to fraction form
    10,932.79/15,086.81 = 6,457.98/x
  3. Step 3: Cross multiply
    10,932.79x = 15,086.81 × 6,457.98
  4. Step 4: Simplify right side
    10,932.79x = 97,430,276.81
  5. Step 5: Solve for x
    x = 97,430,276.81/10,932.79
  6. Step 6: Final answer
    x = 8,911.75

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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.