Home / 9,113.40-13,670.10-5,215.06

Finding the Fourth Proportional to 9,113.40, 13,670.10 and 5,215.06

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Solution

The fourth proportional to 9,113.40, 13,670.10 and 5,215.06 is: 7,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.40 : 13,670.10 = 5,215.06 : x
  2. Step 2: Convert to fraction form
    9,113.40/13,670.10 = 5,215.06/x
  3. Step 3: Cross multiply
    9,113.40x = 13,670.10 × 5,215.06
  4. Step 4: Simplify right side
    9,113.40x = 71,290,391.71
  5. Step 5: Solve for x
    x = 71,290,391.71/9,113.40
  6. Step 6: Final answer
    x = 7,822.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.