Home / 9,386.98-12,953.48-5,137.20

Finding the Fourth Proportional to 9,386.98, 12,953.48 and 5,137.20

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Solution

The fourth proportional to 9,386.98, 12,953.48 and 5,137.20 is: 7,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.98 : 12,953.48 = 5,137.20 : x
  2. Step 2: Convert to fraction form
    9,386.98/12,953.48 = 5,137.20/x
  3. Step 3: Cross multiply
    9,386.98x = 12,953.48 × 5,137.20
  4. Step 4: Simplify right side
    9,386.98x = 66,544,591.77
  5. Step 5: Solve for x
    x = 66,544,591.77/9,386.98
  6. Step 6: Final answer
    x = 7,089.03

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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.