Home / 9,421.65-13,001.45-5,230.17

Finding the Fourth Proportional to 9,421.65, 13,001.45 and 5,230.17

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Solution

The fourth proportional to 9,421.65, 13,001.45 and 5,230.17 is: 7,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.65 : 13,001.45 = 5,230.17 : x
  2. Step 2: Convert to fraction form
    9,421.65/13,001.45 = 5,230.17/x
  3. Step 3: Cross multiply
    9,421.65x = 13,001.45 × 5,230.17
  4. Step 4: Simplify right side
    9,421.65x = 67,999,767.60
  5. Step 5: Solve for x
    x = 67,999,767.60/9,421.65
  6. Step 6: Final answer
    x = 7,217.39

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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.