Home / 8,869.13-12,239.44-4,890.14

Finding the Fourth Proportional to 8,869.13, 12,239.44 and 4,890.14

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Solution

The fourth proportional to 8,869.13, 12,239.44 and 4,890.14 is: 6,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.13 : 12,239.44 = 4,890.14 : x
  2. Step 2: Convert to fraction form
    8,869.13/12,239.44 = 4,890.14/x
  3. Step 3: Cross multiply
    8,869.13x = 12,239.44 × 4,890.14
  4. Step 4: Simplify right side
    8,869.13x = 59,852,547.60
  5. Step 5: Solve for x
    x = 59,852,547.60/8,869.13
  6. Step 6: Final answer
    x = 6,748.41

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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.