Home / 6,429.51-8,876.88-5,756.13

Finding the Fourth Proportional to 6,429.51, 8,876.88 and 5,756.13

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Solution

The fourth proportional to 6,429.51, 8,876.88 and 5,756.13 is: 7,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.51 : 8,876.88 = 5,756.13 : x
  2. Step 2: Convert to fraction form
    6,429.51/8,876.88 = 5,756.13/x
  3. Step 3: Cross multiply
    6,429.51x = 8,876.88 × 5,756.13
  4. Step 4: Simplify right side
    6,429.51x = 51,096,475.27
  5. Step 5: Solve for x
    x = 51,096,475.27/6,429.51
  6. Step 6: Final answer
    x = 7,947.18

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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.