Home / 7,417.48-11,113.93-5,215.45

Finding the Fourth Proportional to 7,417.48, 11,113.93 and 5,215.45

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Solution

The fourth proportional to 7,417.48, 11,113.93 and 5,215.45 is: 7,814.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.48 : 11,113.93 = 5,215.45 : x
  2. Step 2: Convert to fraction form
    7,417.48/11,113.93 = 5,215.45/x
  3. Step 3: Cross multiply
    7,417.48x = 11,113.93 × 5,215.45
  4. Step 4: Simplify right side
    7,417.48x = 57,964,146.22
  5. Step 5: Solve for x
    x = 57,964,146.22/7,417.48
  6. Step 6: Final answer
    x = 7,814.53

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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.