Home / 10,516.40-14,513.66-7,859.20

Finding the Fourth Proportional to 10,516.40, 14,513.66 and 7,859.20

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Solution

The fourth proportional to 10,516.40, 14,513.66 and 7,859.20 is: 10,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.40 : 14,513.66 = 7,859.20 : x
  2. Step 2: Convert to fraction form
    10,516.40/14,513.66 = 7,859.20/x
  3. Step 3: Cross multiply
    10,516.40x = 14,513.66 × 7,859.20
  4. Step 4: Simplify right side
    10,516.40x = 114,065,644.81
  5. Step 5: Solve for x
    x = 114,065,644.81/10,516.40
  6. Step 6: Final answer
    x = 10,846.45

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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.