Home / 9,387.23-12,953.66-5,137.34

Finding the Fourth Proportional to 9,387.23, 12,953.66 and 5,137.34

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Solution

The fourth proportional to 9,387.23, 12,953.66 and 5,137.34 is: 7,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.23 : 12,953.66 = 5,137.34 : x
  2. Step 2: Convert to fraction form
    9,387.23/12,953.66 = 5,137.34/x
  3. Step 3: Cross multiply
    9,387.23x = 12,953.66 × 5,137.34
  4. Step 4: Simplify right side
    9,387.23x = 66,547,265.21
  5. Step 5: Solve for x
    x = 66,547,265.21/9,387.23
  6. Step 6: Final answer
    x = 7,089.13

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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.