Home / 7,963.31-10,977.50-5,130.11

Finding the Fourth Proportional to 7,963.31, 10,977.50 and 5,130.11

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Solution

The fourth proportional to 7,963.31, 10,977.50 and 5,130.11 is: 7,071.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.31 : 10,977.50 = 5,130.11 : x
  2. Step 2: Convert to fraction form
    7,963.31/10,977.50 = 5,130.11/x
  3. Step 3: Cross multiply
    7,963.31x = 10,977.50 × 5,130.11
  4. Step 4: Simplify right side
    7,963.31x = 56,315,822.79
  5. Step 5: Solve for x
    x = 56,315,822.79/7,963.31
  6. Step 6: Final answer
    x = 7,071.91

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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.