Home / 10,439.47-14,407.13-5,723.76

Finding the Fourth Proportional to 10,439.47, 14,407.13 and 5,723.76

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Solution

The fourth proportional to 10,439.47, 14,407.13 and 5,723.76 is: 7,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.47 : 14,407.13 = 5,723.76 : x
  2. Step 2: Convert to fraction form
    10,439.47/14,407.13 = 5,723.76/x
  3. Step 3: Cross multiply
    10,439.47x = 14,407.13 × 5,723.76
  4. Step 4: Simplify right side
    10,439.47x = 82,462,954.41
  5. Step 5: Solve for x
    x = 82,462,954.41/10,439.47
  6. Step 6: Final answer
    x = 7,899.15

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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.